Skip to main content

Full text of "tektronix :: 405x :: 070-2286-00 4051 Service Vol2 May77"

See other formats


TEKTRONiX® 

4051 

GRAPHIC SYSTEM 

SERVICE MANUAL 

VOLUME 2 



lektronix, inc. 

P.O. Box 500 

Beaverton, Oregon 97077 

070-2286-00 First Printing MAY 1977 



WARNING 



) 



THE FOLLOWING SERVICING INSTRUCTIONS ARE 
FOR USE BY QUALIFIED PERSONNEL ONLY. TO 
AVOID PERSONAL INJURY, DO NOT PERFORM ANY 
SERVICING OTHER THAN THAT CONTAINED IN 
OPERATING INSTRUCTIONS UNLESS YOU ARE 
QUALIFIED TO DO SO. 



Copyright © 1977 by Tektronix, Inc. Beaverton, Oregon. Printed 
in the United States of America. All rights reserved. Contents of 
this publication may not be reproduced in any form without 
permission of Tektronix, Inc. 



This instrument, in whole or in part, may be protected by one or 
more U.S. or foreign patents or patent applications. Information 
provided on request by Tektronix, Inc., P.O. Box 500, Beaverton, 
Oregon 97077. 



TEKTRONIX is a registered trademark of Tektronix, Inc. 



PRODUCT 4051 GRAPHIC SYSTEM 



This manual supports the following versions of this product: B010100 and up. 



MANUAL REVISION STATUS 



REV. 


DATE 


DESCRIPTION 








@ 


5 77 


Original Issue 



4051 SERVICE VOL. 2 



CONTENTS 



Cnniinn i 

Ocviiuii ■ 


Section 2 


Section 3 


Section 4 


Section 5 


Section 6 


Section 7 


Section 8 


Section 9 


Section 10 


Section 11 


Appendix A 



ii\i ! RuuUCi iOi\i 



CROSS-REFERENCE DATA 



WIRE HARNESS 



4051 SCHEMATICS 



4051 REPLACEABLE ELECTRICAL PARTS 



4051 REPLACEABLE MECHANICAL PARTS 



FIRMWARE BACKPACK SCHEMATICS 



MKMWAKt bAUKTAUK KbPLAUtABLfc fAK I 5 



COMMUNICATION BACKPACK SCHEMATICS 



COMMUNICATION BACKPACK REPLACEABLE PARTS 



ROM PACK nATA SHFFTS 



INDEX OF SIGNAL NAMES 



Change Information 



4051 SERVICE VOL. 2 




2286-1 



Fig. 1-1. Tektronix 4051 Graphic System. 



iii 



@ 



4051 SERVICE VOL. 2 



Section 1 



INTRODUCTION 

ABOUT THE MANUAL 

Service documentation for the 4051 Graphic System is a two-part package of which this 
manual is the second part. 

4051 Service Manual, Volume 1 (070-2065-00) 
4051 Service Manual, Volume 2 (070-2286-00) 

The first volume contains the text of the maintenance and service information, including 
assembly/disassembly procedures, circuit descriptions and troubleshooting guidelines. 
Volume 2 contains schematics, replaceable parts information, cables and wiring, and signal 
cross reference information. 



SYSTEM CONCEPTS 

The 4051 Graphic System is illustrated in Fig. 1-1. It executes statements typed on the 
keyboard using the syntax of the BASIC interpretive computer language. Graphic and 
alphanumeric information can be stored on the crt display. An optional Communication 
Backpack can be installed to make the 4051 behave as an intelligent graphic terminal or to 
emulate one of the Tektronix Computer Display Terminals. A General Purpose Interface Bus 
(GPI B) is available and conforms to the IEEE Standard 488-1 975 defining a standard interface 
for programmable instruments. An optional joystick can be connected to provide convenient 
graphic input capability. A Hard Copy Unit can also be connected to the system to directly 
transfer display information from the crt to photosensitive paper. 

The 4051 Graphic System is built around a Motorola 6800 microcomputer system as illustrated 
by Fig. 1-2. The 6800 microprocessor unit (MPU) is the system controller, scheduler and 
primary logic device. Other system components include random access memory (RAM) to 
store BASIC programs and data in machine executable form. Read only memory (ROM) 
contains the BASIC interpreter and device communication codes. Peripheral interface 
adapters (PIAs) provide a processor interface to most of the devices comprising a 4051 
Graphic System. The primary data linkages between components are shown as are the 
appropriate 4051 schematics (and backpack schematics) that provide the circuit details. 

Detailed circuit descriptions can be found in the 4051 Service Manual, Volume 1. 
Supplementary block diagrams are shown in the following figures to help you locate the 
desired or needed schematics. 

Figure 1-3 shows the magnetic tape interface between the system PIAs and the tape drive 
board. The tape drive board and tape status hardware are illustrated in Fig. 1-4. 



4051 SERVICE VOL. 2 (5) 1-1 



N3 




HARD COPY 
UNIT 



-» 





DISPLAY CONTROL 
AND VECTOR GENERATOR | 
(2-101(2-121(2-131 





RAM 
(2-71(2-81(3-11 
(3-21(3-31(3-41 



REFRESH CLK 

(2-6) 





ROM 
(2-41(2-5) 




TAPE CONTROL 

AND MONITOR 

(2-14)12-15) 



SOT, RDBYTE.SA.SB 



Y-AXIS 

PIA 

(2-111(2-14) 




GPIB 

CONTROL 

(2-9)12-161(2-17) 




TAPE 

PIA 

(2-141(2-15) 



in 




GPIB 

PIA 

(2-16)12-171 



o 



ADDRESS BUS 




I BACKPACK CIRCUITRY 



ITT 




(TO HOST COMPUTERI 




z 

H 
30 
O 
O 

c 
o 

H 
O 

z 



Fig. 1-2. 4051 Graphic System block diagram showing schematic sheet numbers in parenthesis. 



CO 



PIA 
OUTPUT 



TAPE DRIVE 
BOARD, 



DELAY IN-1 



DELAY OUT-1 



( MTCLK-0 ) 



WRITE 
REGISTER 



1_± 



(rESTART-o) 



MOTOR DRIVf 



i_i_t 



WRITE 
DATA 



ENABLE-1 T 



READ 
REGISTER 



^ 



, , , 



BEAD 
DATA 



HARD COPY DISABLE I TO DISPLAY BOARD 



(copyenT) 



^- 



TAPE DRtVE BOARD 
I6-1M6-2H6.J) 



CAIITKIOGr STATUS 

17 v UPHOLE-H 
IOHOLE — I 
LAMPON-- . 

lAMfoNREl ■• LOADED-- »\~ 

SUFE SW 1 



Fig. 1-3. Magnetic tape interface circuitry. 



PIA 
INPUT 



(2-9) 
(2-141 



z 

H 
30 
O 

D 

C 

o 

H 
O 

z 



INTRODUCTION 



TAC [ ) MOTOR 




r~y~^>~ RcLK - 



ro 



Fig. 1-4. Tape drive circuity illustrating the tape status, tape drive and read/write circuits in detailed block diagram 
form. 

Figure 1-5 shows a detailed block diagram of display control circuits that use signals from PI As 
to generate the analog signals required by the display board circuitry. The display board 
circuits are outlined in Fig. 1-6. 



1-4 



4051 SERVICE VOL. 2 



INTRODUCTION 



PIAs 



IVECTOR-0 



X Data 



|Y Data 



IBUFCLK-1 



IVEN-0 



> 



X 

DAC 



REG 



> 



Y 

DAC 



£~ 



SHIFT-O, 



VIEWCAUSE-1 



100s 
VIEW 
TIMER 



XD/A. 



YD/A 



V V 



Filter Enable 



X FILTER 



Y FILTER 



Timer 
Enable 



> 



3.7ms 

VECTOR 

TIMER 



LONG 

VECTOR 

SENSE 



Short Vector 



NOBURN CLK 



Disable Oscillator 



DRBUSY- 



3Z> 




DISPLAY 
DEFLECTION 
CIRCUITRY 



.ZVECT-0 



Z Axis 
Modulation 
for Short 
Vectors 



HOLD MODE 
-01 OSCILLATOR 



I *$*— 



SOT 



CURSOR 

INTENSITY 

TIMER 



Refresh Dot 



— -yfa — 



ADOT 



CHARACTER 

INTENSITY 

TIMER 



Character Dot 



VIEW 



=9TV-° 

fS y writii 



ting 
Beam 
Control 



Fig. 1-5. Display control block diagram. 



4051 SERVICE VOL. 2 



1-5 



INTRODUCTION 



+175 VOLT 
POWER 
SUPPLY 



ERASE 
TIMER 



XHCRAMPl 



^y 



ORIGIN 
SHIFT 



& 



Y HC RAMPl 



READ-0 | 
WAIT-Ol 



x> 



5> 



TARGET OR 
STORAGE 

BACKPLATE 
CONTROL 



HARD COPY 
CRT READOUT 



COLLIMATION 

ELECTRODE 

CONTROL 



FLOOD GUN 
CONTROL 



ANALOG 
MPX 



ANALOG 
MPX 




DYNAMIC ^.(4?) 

FOCUS V* J 



HIGH VOLTAGE 
REGULATING 
OSCILLATOR 



GEOMETRY 
CORRECTION 



DYNAMIC 
FOCUS 



FOCUS 
SUPPLY 



FILAMENT 
SUPPLY 



HV Feedback 



HARD COPY 
INTENSITY 



INTER-Ol 
Z0| 



Z AXIS 
MPX 



HIGH 

VOLTAGE 

SUPPLY 



CONTROL 
GRID 
SUPPLY 



Z SIGNAL 
AMPLIFIER 



. Target Element (STB) 



Collimation Electrode Elements 
(CE1.CE2) 



Flood Gun Elements 



(FG ANODE, FG CATHODE) 
+150 VOLTS 




X Deflection 
Yoke 



Y Deflection 
Yoke 



^ Writing Gun 
Focus 



Writing Gun 
"Control Grid 



Writing Gun 
Cathode 



Writing Gun 
Filament 



Fig. 1-6. Display unit block diagram. 



1-6 



4051 SERVICE VOL. 2 



INTRODUCTION 



The General Purpose Interface Bus (GPIB) circuitry is shown in Fig. 1-7. All signal lines are 
controlled by system firmware and the 6800 microprocessor. The block diagram shows the 
circuitry between the PIAs and the GPIB, including schematic sheet references. 



-16) 



(2-16) 



4* 



PIAs 



(2-17) 
(2-17) 



(2-16,2-17) 

(2-17) 

(2-17) 

(2-9) 

(2-17) 

(2-9,2-16,2-17) 



TALK-0 



DI01-DI08 



NRFD 



NDAC 



DAV 




SRQ 



REN 



IFC 



I 



EOI 



EXTERNAL 
(GPiBj 




Fig. 1-7. General Purpose Interface Bus (GPIB) block diagram. 

The Firmware Backpack circuitry is illustrated by Fig. 1-8. The backpacks contain a bank 
switch register that allows selected firmware backpacks and optional interfaces to be 
addressed by the microprocessor. 



TIMING 

The following system timing diagrams (Figs. 1-9 and 1-10) are included here as a ready 
reference to system troubleshooting. Detailed description of the associated circuitry resides in 
Volume 1. 



4051 SERVICE VOL. 2 



1-7 



INTRODUCTION 




Fig. 1-8. Block diagram Firmware Backpack circuitry. 



1-8 



4051 SERVICE VOL. 2 



INTRODUCTION 



(A) 



1200ns 
-833kHz- 



_jiJiJiJTj~u~uijnjTJiJiJTiiJiJ~LrLr 



| TO | T1 | T2 | T3 | T4 | T5 | T6 [ T7 | T8 | T9 | T10 | T11 | T12 | T13 | T14 | TO 



J 



~L 



_r 






njiiniu^^ 



.K-0 I 



-19.2/Lls- 



1_ 



REFCLKO-0 



~L 



-38.4JHS- 



-38 A/is- 



"1_ 



NOBURN CLK-0 ^J IT 

t*— 8.4/is-»4 



U U U U U U LT 



-»j |*-1.2/W 

— "innnnjuuinjuirinnnjiJinnnjiruuuuinnjinnnnr 



(TP)WCLK 



~L 



-19.2JLIS- 



J~L 



n 



-21.6/Hs- 



n. 



-*\ L *-2.4 / Us 



(C) 



(TP)WCLK I I I I I I I I I I I I I I I I I I I I I I I I I I I I 

I it 1 



-216/Us- 



(LOAD) I (TRANSMIT) |{LOAD)| (TRANSMIT) I (LOAD) 

— »j |^-43.2^s 



IT 



Fig. 1-9. 4051 Graphic System control timing: a) processor timing, b) memory refresh and system clocks, c) tape 
control timing. 



4051 SERVICE VOL. 2 



1-9 



INTRODUCTION 

















(ERASE INTERVAL) 


TTY LOW 










+120 to +280 V 








OV 

+55 to +1 1 5V 1 

COLLIMATOR (CE) 

+35V 












FLOOD GUN ANODE 










OV 










— mA l+ — 14ms 






FLOOD GUN CATHODE 










-150V 














2286-10 



Fig. 1-10. Display erase timing and voltage waveforms. 

MEMORY ADDRESSING AND PIA DATA 

Figure 1-11 is a memory address allocation map for the 4051 Graphic System. Following the 
address map are tables of peripheral interface adapters (PIAs) showing their data line and 
control line assignments. 



1-10 



4051 SERVICE VOL. 2 



64K MEMORY ALLOCATION 
0000 



2000 



4000 



6000 



PERIPHERAL 
CONTROL 



8000 



" 2K SYSTEM 



8K STANDARD RAM 



(OPTIONAL 8K 
RAM INCREMENTS) 



A800 



INTERRUPT 
AND RESTART 
VECTORS 



1.89KROM 



8K ROM 
(SWITCHABLE BANK) 



22K ROM 



8780 



RAM 



ROM 



87 FP 



FFFF 



INTRODUCTION 



PERIPHERAL CONTROL ADDRESSES 



8780 



84 



88 



8C-F 



Y-AXIS DA/TAPE 



90 



94-7 



X-AXIS DA 



98-B 



TAPE/JOYSTICK 



9C 



AO 



A4 



A8-B KEYBOARD/STATUS LiGHTS 



AC 



BO-3 



GPIB 



B4 



B8 



BC 



CO-3 



BANK SWITCH 



C4-7 COM (Option) 



C8-B 



XPC2 



CC-F 



XPC3 



DO-3 



XPC4 



D4 



D8 



DC 



EO 



E4 



E8 



EC 



FO 



F4 



F8 



87FC-F 



DIVISION 


ADDRESS BOUNDARIES 


Standard RAM 


0000-1 FFF 


Optional RAM 


2000-7 FFF 


1.89KROM 


8000-877 F 


Peripheral Control 


8780-87 FF 


8K Switchable Bank 


8800-A7FF 


22K ROM 


A800-FFF7 


Interrupt Vector 


FFF8-FFF9 


Restart Vector 


FFFE-FFFF 



Fig. 1-11. 4051 memory address allocation map. 



4051 SERVICE VOL. 2 



1-11 



INTRODUCTION 



PIA #U461/Keyboard PIA 
Hex Address: 87A8-B 



CONTROL LINES 


PIA 


Schem. 


Line & Remarks 


IRQA 


(2-9) 


IRQ-0 (Processor Interrupt) 


IRQB 


(2-9) 


IRQ-0 (Processor Interrupt) 


CA1 


(2-9) 


KEY-1 (Input) 


CA2 


(2-9) 


KB HALT-1 (Output) 


CB1 






CB2 






DATA LINES 


PIA 


Schem. Line & Remarks 


PAO 


(2-9) KCO-1 (Input) 


PA1 | (2-9) KC1-1 (Input) 


PA2 (2-9) KC2-1 (Input) 


PA3 (2-9) KC3-1 (Input) 


PA4 | (2-9) KC4-1 (Input) 


PA5 ! (2-9) KC5-1 (Input) 


PA6 i (2-9) KC6-1 (Input) 


PA7 i (2-9) TTY-0 (input) 


PBO 


(2-9) 


SHIFT-0 (Input) 


PB1 


(2-9) 


CTRL-0 (Input) 


PB2 






PB3 


(2-9) 


LOAD-0 (Input) 


PB4 


(2-9) 


EOI-1 (Output) 


PB5 


(2-9) 


BREAK-1 (Output) 


PB6 


(2-9) 


1/0-1 (Output) 


PB7 


(2-9) 


BUSY-1 (Output)/REN-0 (Output) 



1-12 



4051 SERVICE VOL. 2 



INTRODUCTION 



PIA #U565/X Axis PIA 
Hex Address: 8794-7 

CONTROL LINES 



PIA 


Schem. 


Line & Remark 


IRQA 


(2-10) 


IRO-0 (Processor Interrupt) 


IRQB 


(2-10) 


IRQ-0 (Processor Interrupt) 


CA1 






CA2 


(2-10) 


ADOT-0 (Output) 


CB1 


(2-10) 


VIEWCAUSE-1 (Input) 


CB2 


(2-10) 


BUFCLK-0 (Output) 



DATA LINES 



PIA 


Schem. 


Line & Remark 


PA0 


(2-10) 


(Output) 


X D/A 


PA1 


(2-10) 


(Output) 





PA2 


(2-10) 


DRBUSY-0 (Input) 


PA3 


(2-10) 
(2-10) 


VPULSE-1 (Input) 


PA4 


ERASE-0 (Output) 


PA5 


(2-10) 


COPY-0 (Output) 



PA6 


(2-10) 


VECTOR-0 (Output) 


PA7 


(2-10) 


VEN-1 (Output) 


PB0 


(2-10) 


(Output) 




PB1 


(2-10) 


(Output) 




r o£. 




(uuipui) 




PB3 


(2-10) 


(Output) 


X D/A 


PB4 


(2-10) 


(Output) 




PB5 


(2-10) 


(Output) 




PB6 


(2-10) 


(Output) 




PB7 


(2-10) 


(Output) 





4051 SERVICE VOL. 2 



1-13 



INTRODUCTION 



PI A #561 /Tape PIA/Y Axis PI A 
Hex Address: 878C-F 



CONTROL LINES 



PIA 


Schem. 


Line & Remarks 


IRQA 


(2-14) 


NMI-0 (Processor Interrupt) 


IRQB 


(2-14) 


NMI-0 (Processor Interrupt) 


CA1 


(2-11) 


RDBYTE-1 (Input) 


CA2 


(2-11) 


SOT-0 (Output) 


CB1 


(2-14) 


MDATA-1 (Input) 


CB2 


(2-14) 


FMARK-1 (Input) 



DATA LINES 



PIA 


Schem. 


Line & Remarks 


PAO 


(2-11) 


SAO (Input— Tape) 


(Output— Y D/A) 


PA1 


(2-11) 


SA1 (Input— Tape) 




PA2 


(2-11) 


SA2 (Input— Tape) 




PA3 


(2-11) 


SA3 (Input— Tape) 


(Output— Y CHAR D/A) 


PA4 


(2-11) 


SA4 (Input— Tape) 




PA5 


(2-11) 


SA5 (Input— Tape) 




PA6 


(2-11) 


SA6 (Input— Tape) 


(Output— X CHAR D/A) 


PA7 


(2-11) 


SA7 (Input— Tape) 




PBO 


(2-11) 


SBO (Output— Tape) 




PB1 


(2-11) 


SB1 (Output— Tape) 




PB2 


(2-11) 


SB2 (Output— Tape) 




PB3 


(2-11) 


SB3 (Output— Tape) 


(Output— Y D/A) 


PB4 


(2-11) 


SB4 (Output— Tape) 




PB5 


(2-11) 


SB5 (Output— Tape) 




PB6 


(2-11) 


SB6 (Output— Tape) 




PB7 


(2-11) 


SB7 (Output— Tape) 





1-14 



4051 SERVICE VOL. 2 



INTRODUCTION 



PIA #U361/Tape PIA 
Hex Address: 8798-B 



CONTROL LINES 



PIA 


Schem. 


Line & Remarks 


IRQ A 


(2-14) 


NMI-0 (Processor Interrupt) 


IRQB 


(2-14) 


NMI-0 (Processor Interrupt) 


CA1 


(2-15) 


RMARK-1 (Input) 


CA2 


(2-15) i FILFND-1 (Input) 


CB1 


(2-14) LOHOLE-1 (Input) 


CB2 


(2-14) UPHOLE-1 (Input) 


DATA LINES 


PIA 


Schem. 


Line & Remarks 


PAO J (2-15) 


DELAY OUT-1 (Input) 


PA1 (2-15) 


LDCLK-1 (Output) 


PA2 


(2-15) 


TUTS-1 (Input) 


PA3 (2-15) 


SAFE-1 (Input) 


PA4 j (2-15) i SAFE-1 (input) 


PA5 (2-15) | XERR-1 (Input— Joystick) 


PA6 (2-15) I FILFND-1 (Input) 


PA7 : (2-15) 


YERR-1 (Input— Joystick) 


PBO 


(2-14) 


WR-0 (Output) 


PB1 


(2-14) 


FAST-1 (Output) 


PB2 


(2-14) 


REV-1 (Output) 


PBS 


\— ■ ■ / 


nRTAPF-n /nntniit\ 


PB4 


(2-14) 


GICG-1 (Output) 


PB5 I (2-14) 


FICG-1 (Output) 


PB6 (2-14) 


WENABLE-1 (Output) 


PB7 ' (2-14) 


FSENABLE-0 (Output) 



4051 SERVICE VOL. 2 



1-15 



INTRODUCTION 



PIA #U265/GPIB PIA 
Hex Address: 87B0-3 

CONTROL LINES 



PIA 


Schem 


Line & Remarks 


IRQA 


(2-16) 


IRQ-0 (Processor Interrupt) 


IRQB 


(2-16) 


IRQ-0 (Processor Interrupt) 


CA1 


(2-16) 


EOI-1 (Input) 


CA2 


(2-16) 


DAV-1 (Output) 


CB1 


(2-17) 


SRQ-1 (Input) 


CB2 


(2-16) 


TALK-1 (Output) 


DATA LINES 


PIA 


Schem. 


Line & Remarks 


PAO 


(2-16) 


DIOI-1 (Bidirectional) 


PA1 


(2-16) 


DI02-1 (Bidirectional) 


PA2 


(2-16) 


DI03-1 (Bidirectional) 


PA3 


(2-16) 


DI04-1 (Bidirectional) 


PA4 


(2-16) 


DI05-1 (Bidirectional) 


PA5 


(2-16) 


DI06-1 (Bidirectional) 


PA6 (2-16) 


DI07-1 (Bidirectional) 


PA7 ; (2-16) DI08-1 (Bidirectional) 


PBO 


(2-17) | EOI-1 (Output) 


PB1 


(2-17) i IFC-1 (Output) 


PB2 






PB3 


(2-17) 


ATN-0 (Output) 


PB4 


(2-17) 


NRFD (Bidirectional) 


PB5 


(2-17) 


SRQ-1 (Input) 


PB6 


(2-17) 


DAV-1 (Input) 


PB7 


(2-17) 


NDAC (Bidirectional) 



1-16 



4051 SERVICE VOL. 2 



INTRODUCTION 



PIA#U5/Communications PIA 
Hex Address: 87C0-3 

CONTROL LINES 



PIA 


Schem. 


Line & Remarks 


IRQ A 


(10-1) 


i Zjr\-C\ /Drnrpeerji' infprri inn 


IRQB 


(10-1) 


IRQ-0 (Processor Interrupt) 


CA1 


(10-1) 


SRX (Input) 


CA2 






CB1 


(10-1) 


DTR(DCD) (Input) 


CB2 


(10-1) 


RTS(CTS) (Input) 


DATA LINES 




PIA 


Schem 


Line & Remarks 


PAO 






PA1 




PA2 




PA3 


(10-1) 


(Output) 


PA4 


nru-n 


/nntnut\ Rank f^uvitrh Rpnictpr 


PA5 


(10-1) 


(Output) 


PA6 




PA7 






PBO 


(10-1) 


SRX (Input) 


PB1 


(10-1) 


DTR(DCD) (Input) 


PB2 


(10-1) 


RTS(CTS) (Input) 


PB3 


(10-1) 


CTS(RTS) (Output) 


PB4 


(10-1) 


STXA-C (Output) 


PB5 


(10-1) 


(Output) 


PB6 


(10-1) 


(Output) Baud Rate Select 


PB7 


(10-1) 


\ (Output) 



4051 SERVICE VOL. 2 



@ 



1-17 



Section 2 



CROSS-REFERENCE DATA 

This cross-reference list contains a!! signal mnemonics used in a 4051 Graphic System and the 
4051 schematic sheets on which the signals are located. Once a signal name has been 
identified, locate the signal name in the following alphabetized list. The number pairs to the 
right indicate the schematic sheets on which this signal may be found. Table 2-1 specifies 
which circuit board and schematic sheets go together. 



Table 2-1 
SCHEMATIC ASSIGNMENT CHART 



1-X 


Power Supply 


2-X 


CPU Board 


3-X 


Memory Board 


4-X 


Display Board 


5-X 


Keyboard 


6-X 


Tape Drive Board 


7-X 


Tape Status Board 


8-X 


Indicator Board 


9-X 


Firmware Backpack 


10-X 


Communications Interface 


11-X 


Communications ROM Board 



4051 SERVICE VOL. 2 



2-1 



CROSS-REFERENCE DATA 



4051 MNEMONIC CROSS-REFERENCE LIST 



NAME 


SCHEMATICS 


+12 V 


1-1, 10-1, 10-2, 11-1,2-1, 2-4, 2-5, 2-7, 2-8, 




2-9, 3-1 , 3-2, 3-3, 3-4 


+12 V DECOUPLED 


1-1 


+12 V 


2-1,8-1,9-1 


+15 V 


1-1, 2-1, 2-12, 4-2, 4-2A, 4-3, 4-4, 4-6, 4-7, 6-2, 6-3 


+15V1 


2-1, 2-10, 2-11, 4-2, 4-2A, 4-6, 6-1, 6-3 


+15 V2 


4-1, 4-3, 4-5 


+15 V3 


4-4, 4-7 


+150 V 


4-4, 4-2, 4-2A, 4-6, 4-7 


+174 V 


4-4, 4-7 


+175 V 


4-2, 4-2A, 4-6 


+185 V 


4-2, 4-2A, 4-6 


+185 V UNREG 


1-1, 1-2 


+185 V1 


4-2, 4-2A, 4-6 


+20 V 


4-2, 4-2, 4-2A, 4-2A, 4-3, 4-6, 4-7, 6-3 


+20 V UNREG 


1-1 


+320 V 


4-2, 4-2A, 4-4, 4-6, 4-7 


+320 V UNREG 


1-2 


+320 V1 


4-2, 4-2A, 4-6 


+320 V2 


4-4, 4-7 


+5 V 


1-2, 10-1, 10-2, 11-1, 2-1, 2-10, 2-11, 2-12, 2-13, 




2-14, 2-15, 2-16, 2-17, 2-3, 2-4, 2-5, 2-6, 




2-7, 2-8, 2-9, 3-1, 3-2, 3-3, 3-4, 4-1, 4-2, 




4-2A, 4-4, 4-5, 4-6, 4-7, 5-1 , 6-1 , 6-3, 7-1 , 9-1 


+5 V REP 


1-1, 1-2 


+5 V1 


4-4 


-11.5 V 


2-1, 2-10, 2-11 


-12 V 


1-1, 10-1, 10-2, 2-1, 2-12, 2-9, 3-2, 4-2, 4-2A, 




4-3, 4-4, 4-5, 4-6, 4-7, 6-2, 6-3, 9-1 


-12 V DECOUPLED 


1-1 


-12 V1 


4-2, 4-2A, 4-6, 6-1 , 6-3 


-12 V2 


4-2, 4-2A, 4-6 


-12 V3 


4-1 , 4-3, 4-5 


-12 V4 


4-4, 4-7 


-20 V 


4-2, 4-2A, 4-3, 4-5, 4-6, 4-7, 6-3 


-20 V LIMITED 


1-1, 2-1, 2-12 


-20 V UNREG 


1-1 


-3 V 


11-1 


-5 V 


2-4, 2-5, 2-7, 2-8, 3-2, 3-3, 3-4 


-5 V1 


2-1, 2-4, 2-5 



2-2 



4051 SERVICE VOL. 2 



CROSS-REFERENCE DATA 



NAME 



SCHEMATICS 



-5 V2 
ABO-1 

AB1-1 

AB2-1 

AB3-1 

AB4-1 

AB5-1 

AB6-1 

AB7-1 

AB8-1 

AB9-1 

AB10-1 

AB11-1 

AB12-1 

AB13-1 

AB14-1 

AB15-1 

ABA-1 

AC-LINE-VOLTAGE 

ADOT-0 

ANODE 

ATN-0 

ATN-1 

BIAS 

BREAK-0 

BS(L)-0 

BS(R)-0 

BSCOM-0 

BSEXT-0 

BSX(L) 

BSX(R) 



2-1 , 2-7, 2-8 

10-1, 10-2, 11-1, 2-10, 2-11, 2-14, 2-16, 2-3 

2-4, 2-5, 2-6, 2-9, 9-1 , 9-2 

10-1, 10-2, 11-1, 2-10, 2-11, 2-14, 2-16, 2-3 

2~4 2~5 2 _ o, £-;?, 3- * , ??-£ 

10-1, 10-2, 11-1, 2-10, 2-11, 2-14, 2-3, 2-4, 

2-6, 9-1 , 9-2 

10-1, 10-2, 11-1,2-11, 2-14, 2-3, 2-4, 2-5, 

2-6, 2-9, 9-1 , 9-2 

10-1, 10-2, 11-1, 2-10, 2-14, 2-16, 2-3, 2-5, 

2-6, 9-1 , 9-2 

10-1, 10-2, 11-1, 2-16, 2-3, 2-4, 2-5, 2-6, 

2-9, 9-1 , 9-2 

10-2, 11-1, 2-3, 2-4, 2-5, 2-7, 2-8, 3-1, 3-3, 

3-4, 9-1 , 9-2 

10-2, 11-1, 2-3, 2-4, 2-5, 2-7, 2-8, 3-1, 3-3, 

3-4, 9-1 , 9-2 

10-2, 11-1, 2-4, 2-5, 2-7, 2-8, 3-1, 3-3, 3-4, 

»- 1 , »-^ 

10-2, 11-1, 2-3, 2-4, 2-5, 2-7, 2-8, 3-1, 3-3, 

3-4, 9-1 , 9-2 

10-2, 11-1, 2-3, 2-4, 2-5, 2-7, 2-8, 3-1, 3-3 

3-4, 9-1 , 9-2 

10-2, 11-1, 2-3, 2-4, 2-7, 2-8, 3-1, 3-3, 3-4, 9-2 

10-2, 11-1, 2-3, 2-4, 2-6,9-2 

10-2, 11-1, 2-3, 2-4, 9-2 

10-2, 11-1, 2-3, 2-4, 2-6, 9-2 

10-2, 11-1, 2-3, 2-4, 2-6, 9-2 

2-3 

1-1 

2-10, 2-13 

4-2, 4-2, 4-4, 2-6, 2-7 

2-17 

2-17 

2-11,4-1, 4-3 

8-1,2-9 

10-1, 10-2, 9-1 

10-1, 10-2, 9-1 

10-1, 10-2, 11-1 

10-1, 10-2, 11-1 

9-1, 10-1, 10-2 

9-1, 10-1, 10-2 



4051 SERVICE VOL. 2 



2-3 



CROSS-REFERENCE DATA 



NAME 


SCHEMATICS 








BUFCLK-1 


2-10, 2-11, 2-12, 2-13 








BUSY-0 


8-1 , 2-9 








CE1 


4-2 








CE2 


4-2 








CHASSIS GND 


4-2, 4-2A, 4-3, 4-4, 4-5, 4-6, 4-7 






COPY-0 


4-1, 2-10, 4-5 








COPYEN-1 


4-1 , 4-2, 4-5, 4-6 








CS-0 


2-7, 2-8,3-1,3-2,3-3,3-4 








CTRL-0 


2-9, 5-1 








CTS 


10-1 








DAV-0 


2-17 








DAV-1 


2-16, 2-17 








DBO-1 


9-1, 10-1, 10-2, 11-1,2-10, 
2-3, 2-4, 2-5, 2-7, 2-9 


2-11, 


2-14, 


2-16 


DB1-1 


9-1, 10-1, 10-2, 11-1, 2-10, 
2-3, 2-4, 2-5, 2-7, 2-9 


2-11, 


2-14, 


2-16 


DB2-1 


9-1, 10-1, 10-2, 11-1, 2-10, 
2-3, 2-4, 2-5, 2-7, 2-9 


2-11, 


2-14, 


2-16 


DB3-1 


9-1, 10-1, 10-2, 11-1, 2-10, 
2-3, 2-4, 2-5, 2-7, 2-9 


2-11, 


2-14, 


2-16 


DB4-1 


9-1, 10-1, 10-2, 11-1, 2-10, 
2-3, 2-4, 2-5, 2-8, 2-9 


2-11, 


2-14, 


2-16 


DB5-1 


9-1, 10-1, 10-2, 11-1, 2-10, 
2-3, 2-4, 2-5, 2-8, 2-9 


2-11, 


2-14, 


2-16 


DB6-1 


9-1, 10-1, 10-2, 11-1, 2-10, 
2-3, 2-4, 2-5, 2-8, 2-9 


2-11, 


2-14, 


2-16 


DB7-1 


9-1, 10-1, 10-2, 11-1, 2-10, 
2-4, 2-5, 2-8, 2-9 


2-14, 


2-16, 


2-3, 


DCD 


10-1 








DELAY IN-1 


6-3, 2-14 








DELAY OUT-1 


6-3, 2-15 








DIO1-0 


2-16 








DIO2-0 


2-16 








DIO3-0 


2-16 








DIO4-0 


2-16 








DIO5-0 


2-16 








DIO6-0 


2-16 








DIO7-0 


2-16 








DIO8-0 


2-16 








DRBUSY-0 


2-10, 2-13, 4-2 








DRTAPE-0 


2-14, 2-15, 6-2 








DSR 


10-1 









2-4 



4051 SERVICE VOL, 2 



CROSS-REFERENCE DATA 



NAME 


SCHEMATICS 


DTR 


10-1 




DYNAMIC FOCUS 


4-3, 4-4 




EMIO-1 


2-7,3-1, 


3-3 


EMI1-1 


2-7, 3-1 , 


3-3 


EMI2-1 


0-7 <_1 


*<-"< 


EMI3-1 


2-7,3-1, 


3-3 


EMI4-1 


2-8, 3-2, 


3-4 


EMI5-1 


2-8, 3-2, 


3-4 


EMI6-1 


2-8, 3-2, 


3-4 


EMI7-1 


2-8, 3-2, 


3-4 


EMOO-0 


2-7,3-1, 


3-3 


EMO1-0 


2-7,3-1, 


3-3 


EMO2-0 


2-7, 3-1 , 


3-3 


EMO3-0 


2-7,3-1, 


3-3 


EMO4-0 


2-8, 3-2, 


3-4 


EMO5-0 


2-8, 3-2, 


3-4 


EMO6-0 


2-8, 3-2, 


3-4 


EMO7-0 


2-8, 3-2, 


3-4 




O.H7 
c.- 1 1 




EOI-1 


2-16, 2-17, 2-9 


EPIAS-0 


2-4, 10-1 


, 10-2, 9-2 


ERASE-0 


2-10, 4-2 


> 


F.G. HEATER 


1-1,4-2 




FAST-1 


2-14, 6-2 


> 


FICG-0 


2-14, 2-15 


FILFND-1 


2-14, 2-15 


FMARK-1 


2-14, 2-15 


FOCUS 


4-4 




FSENABLE-0 


2-14 




GICG-1 


2-14 




GND 


1-1, 10-2 


', 11-1, 2-1, 2-4, 2-5, 2-7, 2-9, 3-2 




4-1, 4-2, 


4-2A, 4-3, 4-5, 4-6, 4-7, 5-1, 6-3, 7-1 




8-1,9-1 




H.V. GND 


4-4 




HALT-0 


2-3 




1/0-1 


2-9, 8-1 




IFC-0 


2-17 




IFC-1 


2-17 




INTER-0 


4-1 




IPIAS-0 


2-10, 2-11, 2-14, 2-16, 2-4, 2-9 


IRQ-0 


10-1, 10-2, 2-10, 2-16, 2-3, 2-9, 9-2 


KBCLK-0 


2-9, 5-1 





4051 SERVICE VOL. 2 



2-5 



CROSS-REFERENCE DATA 



NAME SCHEMATICS 

KBCOPY-0 4-1,4-5 

KBHALT-1 2-9, 5-1 

KCO-1 2-9, 5-1 

KC1-1 2-9, 5-1 

KC2-1 2-9, 5-1 

KC3-1 2-9, 5-1 

KC4-1 2-9, 5-1 

KC5-1 2-9, 5-1 

KC6-1 2-9, 5-1 

KEY-1 5-1 , 2-9 

LAMP ON 6-2, 7-1 

LAMP ON RET. 6-2, 7-1 

LBS-0 10-1, 10-2, 9-1, 9-2 

LDCLK-1 2-15 

LOAD SW 7-1 

LOAD-1 2-15, 2-9 

LOADED 6-3 

LOADED-1 6-3, 2-15 

LOHOLE 6-2, 7-1 

LOHOLE-1 2-14, 6-2 

MAB0-1 2-6, 2-7, 2-8, 3-1 , 3-3, 3-4 

MAB1-1 2-6,2-7,2-8,3-1,3-3,3-4 

MAB2-1 2-6, 2-7, 2-8, 3-1 , 3-3, 3-4 

MAB3-1 2-6, 2-7, 2-8, 3-1 , 3-3, 3-4 

MAB4-1 2-6, 2-7, 2-8, 3-1 , 3-3, 3-4 

MAB5-1 2-6, 2-7, 2-8, 3-1 , 3-3, 3-4 

MAB6-1 2-6, 2-7, 2-8, 3-1, 3-3, 3-4, 3-2 

MAB7-1 2-6, 2-7, 2-8, 3-1, 3-3, 3-4, 3-2 

MAB8-1 2-6, 2-7, 2-8, 3-1, 3-2, 3-3, 3-4 

MAB9-1 2-6, 2-7, 2-8, 3-1, 3-2, 3-3, 3-4 

MAB10-1 2-6, 2-7, 2-8, 3-1, 3-2, 3-3, 3-4 

MAB1 1-1 2-6, 2-7, 2-8, 3-1 , 3-2, 3-3, 3-4 

MAKECOPY-0 4-1,4-5 

MCP1-0 2-2, 2-3 

MCP1-1 2-2 

MCP2-0 2-2, 2-3 

MCP2-1 10-2, 9-2, 2-2, 2-3, 2-6, 2-7 

MDATA-1 2-14 

MRDATA-1 10-1,2-15,6-1 

MTCLK-0 2-14 

NDAC-0 2-17 

NDAC-1 2-17 



2-6 @ 4051 SERVICE VOL. 2 



CROSS-REFERENCE DATA 



NAME 


SCHEMATICS 




NMI-0 


2-3, 2-14 




NOBURN CLK-0 


2-12, 2-2 




NODRIVE-1 


6-1 , 6-2 




NRFD-0 


2-17 




NjDCi~i_i 


Q_T 7 




OFA-0 


9-1 , 9-2 




OFB-0 


9-1 , 9-2 




OFSEL-0 


9-1 , 9-2 




ORIGIN-0 


4-1 , 4-2, 4-5, 4-6 




PIAE-1 


10-1, 10-1, 10-2, 9-2, 2-10, 2-11, 
2-3, 2-9 


2-14, 2-16 


PIAS-0 


2-4 




R/W-0 


2-3, 2-7 




R/W-1 


2-10, 2-11, 2-14, 2-16, 2-3, 2-9 




RAMP 


6-2, 6-3 




RAMSO-0 


2-6, 2-7 




RAMS1-0 


2-6, 2-7 




RAMS2-0 


2-6, 3-1 




r> a n iioo o 
nnivioo-u 


1 £ O -\ 




RAMS4-0 


2-6, 3-1 




RAMS5-0 


2-6, 3-3 




RAMS6-0 


2-6, 3-3 




RAMS7-0 


2-6, 3-3 




RAMW-0 


2-7, 2-8, 3-1 , 3-2, 3-3, 3-4 




RBC-0 


10-1, 10-2 




RBC-1 


2-4, 9-1 




RCCLK-0 


2-2, 2-6 




RCEO-1 


2-8 




RCE1-1 


2-7, 2-8 




RCE2-1 


3-1 , 3-2 




RCE3-1 


3-1 , 3-2 




RCE4-1 


3-1,3-2 




RCE5-1 


3-3, 3-4 




RCE6-1 


3-3, 3-4 




RCE7-1 


3-3, 3-4 




RCLK-1 


2-15, 6-1 




RDBYTE-1 


2-11, 2-14, ?-15 




RDE-0 


2-2, 2-6 




READ-0 


4-1 , 4-5 




REFCLKO-0 


2-2, 2-7 




REFCLK1-0 


2-2, 3-1 




REFCLK2-0 


2-2, 3-3 





4051 SERVICE VOL. 2 



2-7 



CROSS-REFERENCE DATA 



NAME 


SCHEMATICS 


REN-0 


2-17 




REN-1 


2-17, 


, 2-9, 2-17, 2-9 


RES-0 


2-10, 


,2-11, 2-14, 2-16, 2-3, 2-9, 2-10, 2-11, 




2-14, 


,2-16, 2-9 


RESTART-0 


2-3, 


1-2, 10-1, 10-2, 2-15, 2-3, 6-1, 6-2, 9-1 


REV-1 


2-14, 


,6-2 


RMARK-1 


2-15 




ROMDIS-1 


2-4 




ROME5-0 


2-4,: 


2-5 


ROME6-0 


2-4,: 


2-5 


ROME7-0 


2-4, : 


2-5 


ROME8-0 


2-4, : 


2-5 


ROME9-0 


2-4, : 


2-5 


ROME10-0 


2-4, : 


2-5 


ROME11-0 


2-4, : 


2-5 


ROME12-0 


2-4, : 


2-5 


ROME13-0 


2-4, : 


2-5 


ROME14-0 


2-4, : 


2-5 


ROME15-0 


2-4,: 


2-5 


RTS 


10-1 




RWIC-0 


2-7, : 


2-8 


RWOC-1 


10-1, 


, 2-7, 10-1, 10-2, 9-2 


SAO 


2-11, 


,2-15 


SA1 


2-11, 


,2-15 


SA2 


2-11, 


,2-15 


SA3 


2-11, 


,2-15 


SA4 


2-11, 


,2-15 


SA5 


2-11, 


,2-15 


SA6 


2-11, 


, 2-15 


SA7 


2-11, 


, 2-15 


SAFE 


6-1 




SAFE SW 


7-1 




SAFE-1 


2-15 




SBO 


2-11 


, 2-14 


SB1 


2-11, 


, 2-14 


SB2 


2-11, 


,2-14 


SB3 


2-11, 


,2-14 


SB4 


2-11 


,2-14 


SB5 


2-11 


, 2-14 


SB6 


2-11 


, 2-14 


SB7 


2-11 


, 2-14 


SHIFT-0 


2-13 


, 2-9, 5-1 



2-8 (5) 4051 SERVICE VOL. 2 



CROSS-REFERENCE DATA 



NAME 



SCHEMATICS 



SIG GND 

SOT-0 

SPARE 

SPEAKER 

SRQ-0 

SRQ-1 

SRX 

STB 

STXA 

STXC 

TALK-0 

TALK-1 

TARSIG-0 

TARSiG-1 

TDATA 

TNIM-1 

TTY-0 

TUTS 

TUTS-i 

UPHOLE 

UPHOLE-1 

VECTOR-0 

VEN-0 

VEN-1 

VIEW-1 

VIEWCAUSE-1 

VMA-0 

VPULSE-1 

WAIT-0 

WCLK-0 

WDATA-1 

WENABLE-1 

WR-0 

X 

X AMP 

XD/A 

X DFL COIL 

XGEOM 

XGND 

X HC RAMP IN 

XCHAR D/A 

XERR-1 



4-1 , 4-3, 4-5 
2-11, 2-13, 2-14 
4-2, 4-6 
2-9, 8-1 

r\ -a —r 

t.- 1 1 

2-17 

10-1 

4-2, 4-6 

10-1 

10-1 

2-16, 2-17 

2-16, 2-17 

4-1 , 4-5 

4-1 , 4-2, 4-5, 4-6 

10-1 

2-15, 6-2 

2-9, 5-1 

2-15 

6-2 

6-2, 7-1 

2-14, 6-2 

2-10, 2-12 

2-12, 2-13 

2-10, 2-13 

2-13, 4-2 

2-10, 2-13 

2-3 

2-10,2-12 

4-1 , 4-5 

2-14, 6-1 

2-14, 6-1 

2-14 

2-14, 6-1 

2-12,4-1, 4-5 

4-1 , 4-3, 4-5 

2-10, 2-12, 2-9 

4=3, 4=5 

4-3 

4-1 

4-1 

2-10,2-11 

2-15, 2-9 



4051 SERVICE VOL. 2 



2-9 



CROSS-REFERENCE DATA 



NAME SCHEMATICS 

XJOY 2-9 

XPC2-0 10-1,10-2,9-2 

XPC3-0 10-1,10-2,9-2 

XPC4-0 10-1,10-2,9-2 

Y 2-12,4-1,4-5 

Y AMP 4-1,4-3,4-5 
YD/A 2-11,2-12,2-9 

Y DFL COIL 4-3, 4-5 

Y GEOM 4-3 
YGND 4-1,4-5 

Y HC RAMP IN 4-1,4-5 

Y RAMP RET 4-1,4-5 
YCHAR D/A 2-11 
YERR-1 2-15, 2-9 
YJOY 2-9 
ZGND 4-1,4-5 

Z MPX-0 4-1,4-4,4-5,4-7 

Z-0 2-13,4-1,4-5 

ZVECT-0 2-12,2-13 



2-10 & 4051 SERVICE VOL. 2 



Section 3 



WIRE HARNESS 



This section contains wire harness information for 4051 Graphic Systems. Fig. 3-1 shows the 
approximate location of wire harness connectors and board locations throughout the system. 
The connector tables show the wire connections between connectors. A wire color code is 
given in numerical form according to Table 3-1 . In many cases, the least significant digit of a 
connector number also corresponds to the color of the plug or jack that goes on that 
connector. 



Table 3-1 
WIRE COLOR INFORMATION 



CODE 


MEANING 


empty 


| ribbon cable — single coior 


N 


no secondary color 


1-2 


1=primary color (Brown) 
2=secondary color (Red) 





BLACK 


1 


BROWN 


2 


RED 


3 


ORANGE 


4 


YELLOW 


5 


GREEN 


6 


BLUE 


7 


VIOLET 


8 


GRAY 



WHITE 



4051 SERVICE VOL. 2 



3-1 



WIRE HARNESS 




1 51# 52* 53* 54* 55* 








GPIB 
A 



BACKPACK 



CPU 



30 31 



KEYBOARD 



POWER 
SUPPLY 



MEMORY 



STATUS 



INDICATOR 




360 




361 


" 







/ 
\ 



SPEAKER 



Fig. 3-1. 4051 cabling diagram. 



3-2 



4051 SERVICE VOL, 2 



CPU BOARD 



J1 



10 



11 



SIGNAL 



+12 V 



+12 V 



+12 



WIRE 
COLOR 



REFCLK1-0 



GND 



RAMS2-0 



GND 



GND 



GND 



EMI2-1 



EMO1-0 



WIRE HARNESS 



DESTINATION 



J 10-1 



J 10-2 



J 10-4 



J 10-5 



J 10-6 



J 10-7 



J 10-8 



J 10-9 



J 10-10 



J10-11 



12 


1 EMI1-1 


J10-12 


13 


i EMOO-0 


J10-13 


14 


! EMI0-1 


J10-14 


15 


EMI3-1 


J10-15 


16 


EMO3-0 


J10-16 


17 


MAB2-1 


J 10-1 7 


18 


MAB0-1 


J10-18 


19 


MAB4-1 


J10-19 



20 


MAB1-1 


J 10-20 


21 


MAB3-1 


J 10-21 


22 


EMO6-0 


J 10-22 


23 


GND 


J 10-23 



24 


i RAMS5-0 


J 10-24 




25 


REFCLK2-0 


J 10-25 




26 


+5 V 


J 10-26 




27 


! -12 V 


J 10-27 




28 


GND 


J 10-28 




29 


RAMS3-0 


J 10-29 




30 


RAMS4-0 


J 10-30 




31 


i EMO2-0 


J 10-31 




32 


RAMW-0 


J 10-32 




33 


CS-0 


J 10-33 




34 


MAB5-1 


J 10-34 




35 


: MAB6-1 


J 10-35 




36 


EMI4-1 


| J 10-36 




37 


EMO4-0 


J 10-37 




38 


MAB7-1 


J 10-38 




39 


MAB9-1 


J 10-39 




40 


MAB8-1 


J 10-40 





4051 SERVICE VOL. 2 



3-3 



WIRE HARNESS 



CPU BOARD (cont) 



J1 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


41 


MAB11-1 




J 10-41 


42 


MAB10-1 




J 10-42 


43 


EMI5-1 




J 10-43 


44 


EMO5-0 




J 10-44 


45 


EMI7-1 




J 10-45 


46 


EMO7-0 




J 10-46 


47 


EMI6-1 




J 10-47 


48 


RAMS7-0 




J 10-48 


49 


GND 




J 10-49 


50 


RAMS6-0 




J 10-50 



3-4 



@ 



4051 SERVICE VOL. 2 



WIRE HARNESS 



CPU BOARD (cont) 



J2 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


RESTART-0 




J81-1 


2 


GND 




J81-2 


3 


GND 


J81-3 


4 


GND ! 


J81-4 


5 


GND 




J81-5 


6 


GND 




J81-6 


7 


GND 




J81-7 


8 


GND 




J81-8 


9 


GND 




J 81 -9 



10 



15 



GND 



+5 V 



J81-10 



11 


GND 


J81-11 


12 I GND 


1 J81-12 


13 


GND 


J81-13 


14 


-12 V 


! J81-14 



J81-15 



16 



+5 V 



J81-16 



17 



+5 V 



J81-17 



18 


+15 V 




J81-18 


19 


LOADED-1 


J81-19 


20 


RCLK-1 




J81-20 


21 


WCLK-0 




J81-21 


22 


MRDATA-1 




J81-22 


23 


I U I S- 1 ! 


J81-23 


24 


WDATA-1 


J81-24 


25 


TNIM-1 


J81-25 


26 


DELAY OUT-1 


J81-26 


27 


SAFE-1 


J81-27 


28 


LOHOLE-1 


J81-28 


29 


WR-0 


J81-29 


30 


UPHOLE-1 


J81-30 


31 


FAST-1 i 


J81-31 


32 


REV-1 


J81-32 


33 


DRTAPE-0 | 


J81-33 


34 


DELAY IN-0 




J81-34 



4051 SERVICE VOL. 2 



3-5 



WIRE HARNESS 



CPU BOARD (cont) 



J3 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 








2 


+5 V 


9-7 


J31-7 


3 


KBCLK-0 


9-6 


J31-6 


4 


GND 


9-5 


J31-5 


5 


SHIFT-0 


9-4 


J31-4 


6 


CSHIFT-0 


9-3 


J31-3 


7 


KBHALT-1 


9-2 


J31-2 


8 


KEY-1 


9-1 


J31-1 


9 


+12 V 


2-1 


J60-1 


10 


BREAK-0 


1-4 


J60-3 


11 








12 


SPEAKER 


1-6 


J60-5 


13 


-20 V LIMIT 


7-1 


J22-1 


14 


+5 V 


2-0 


J21-10 


15 


RESTART-0 


9-1 


J21-8 


16 


-12 V 


7-0 


J21-7 


17 


+15 V 


2-3 


J21-2 


18 


GND 


0-N 


J21-4 


19 






20 






21 


TTY-0 


9-8 


J30-8 


22 


KC6-1 


9-7 


J30-7 


23 


KC5-1 


9-6 


J30-6 


24 


KC4-1 


9-5 


J30-5 


25 


KC3-1 


9-4 


J30-4 


26 


KC2-1 


9-3 


J30-3 


27 


KC1-1 


9-2 


J30-2 


28 


KC0-1 


9-1 


J30-1 


29 


l/O-O 


1-3 


J60-2 


30 


GND 


0-N 


J60-6 


31 








32 


BUSY-0 


1-5 


J60-4 


33 


+5 V 


2-0 


J 21 -9 


34 


+12 V 


2-1 


J21-3 


35 


-12 V 


7-0 


J21-6 


36 


+15 V 


2-3 


J21-1 


37 


GND 


0-N 


J21-5 


38 









3-6 



4051 SERVICE VOL. 2 



CPU BOARD (cont) 



WIRE HARNESS 



J4 


SIGNAL 


Wlnt 

COLOR 


DESTINATION 


1 








2 


Y 


9-2 
Coax 


J55-1 


3 


YGND 


9-2 
Shield 


J55-2 


4 


COPYEN-1 


9-5 


J59-1 


5 


Y JOYGND 


8-66 (0) 


J40-9 


6 


Y JOY 


8-66 (2) 


J40-8 


7 


X JOYGND 


8-55 (0) 


J40-4 


8 


X JOY 


8-55 (2) 


J40-3 


9 


ERASE-0 


9-3 


J56-6 


10 


DRBUSY-0 


9-2 


J53-7 


11 


VIEW-1 


9-1 


J53-5 


12 


; 


13 


14 


X 


9-1 
Coax 


J55-4 


15 


XGND 


9-1 
Shield 


J55-3 


16 


Z-0 


9-N 
Coax 


J53-4 


17 


ZGND 


9-N 
Shield 


J53-3 


18 


! 


19 


-12 V 


7-0 


J 54-3 


20 


GND 


0-N 


J54-2 


21 


+5 V 


2-0 


J54-9 


22 


+15 V 


2-3 


J54-4 


23 


COPY-0 


9-4 


J 53-2 


24 



4051 SERVICE VOL. 2 



@ 



3-7 



WIRE HARNESS 



CPU BOARD (cont) 



J5-A 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


A1 


AB10-1 




P5-A1 


A2 


ROMDIS-1 




P5-A2 


A3 


HALT-0 




P5-A3 


A4 


PIAS-0 




P5-A4 


A5 


RWOC-1 




P5-A5 


A6 


AB12-1 




P5-A6 


A7 


AB14-1 




P5-A7 


A8 


ABO-1 




P5-A8 


A9 


AB1-1 




P5-A9 


A10 


AB2-1 




P5-A10 


A11 


AB3-1 




P5-A1 1 


A12 


-12 V 




P5-A12 


A13 


-12 V 




P5-A13 


A14 


RBC-1 




P5-A14 


A15 


DB1-1 




P5-A15 


A16 


DB3-1 




P5-A16 


A17 


IRQ-0 




P5-A17 


A18 


DB6-1 




P5-A18 


A19 


PIAE-1 




P5-A19 


A20 


MCP1-1 




P5-A20 


A21 


REFCLKO-0 




P5-A21 


A22 


REFCLK1-0 




P5-A22 


A23 


MCP2-1 




P5-A23 


A24 


EPIAS-0 




P5-A24 


A25 


+12 V 




P5-A25 



3-8 



4051 SERVICE VOL. 2 



WIRE HARNESS 



CPU BOARD (cont) 



J5-B 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


B1 


GND 




P5-B1 


B2 


GND 




P5-B2 


B3 


+5 V 




P5-B3 


B4 


AB9-1 




P5-B4 


B5 


AB8-1 




P5-B5 


B6 


AB7-1 




P5-B6 


B7 


AB13-1 




P5-B7 


B8 


AB15-1 




P5-B8 


B9 


ABA-1 




P5-B9 


B10 


! | P5-B10 


B11 


AB6-1 P5-B11 


B12 


AB5-1 P5-B12 


B13 


AB4-1 | P5-B13 


B14 


AB11-1 P5-B14 


B15 


DBO-1 P5-B15 


B16 


DB2-1 ! ! P5-B16 


B17 


DB4-1 P5-B17 


B18 


DB5-1 P5-B18 


B19 


DB7-1 i P5-B19 


B20 


RESTART-0 




P5-B20 


B21 






P5-B21 


B22 


REFCLK2-0 




P5-B22 


uco 


one n 






B24 


+5 V 




P5-B24 


B25 


GND 




P5-B25 



4051 SERVICE VOL. 2 



3-9 



WIRE HARNESS 



CPU BOARD (cont) 



J6 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


DIO1-0 




(GPIB) 


2 


DIO2-0 




, 


i 


3 


DIO3-0 






4 


DIO4-0 






5 


EOI-0 






6 


DAV-0 






7 


NRFD-0 






8 


NDAC-0 






9 


IFC-0 






10 


SRQ-0 






11 


ATN-0 






12 


Shield 






13 


DIO5-0 






14 


DIO6-0 






15 


DIO7-0 






16 


DIO8-0 






17 


REN-0 






18 


GND 







19 


GND 








20 


GND 




' 




21 


GND 






22 


GND 






23 


GND 




' 


24 


GND 




(GP 


IB) 



3-10 



4051 SERVICE VOL. 2 



WIRE HARNESS 



MEMORY BOARD 








J10 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+12 V 




J1-1 


2 


+12 V 




J1-2 


3 


+12 V 




J1-3 


4 


REFCLK1-0 




J1-4 


5 


GND 




J1-5 


6 


RAMS2-0 




J1-6 




7 


GND 




J1-7 


8 


GND 




J1-8 


9 


GND 




J1-9 


10 


EMI2-1 




\a a r\ 
J 1- IU 


11 


EMO1-0 ! 


J1-11 


12 ! EMI1-1 


J1-12 


13 ! EMOO-O 


J1-13 


14 ! EMI0-1 


J1-14 


15 I EMI3-1 


J1-15 


16 | EMO3-0 


J1-16 


•4 "7 ft h A DO A 
1 f IVI/"VD<£- 1 


I A A —T 
J I" 1 / 


18 MAB0-1 


J1-18 


19 


MAB4-1 


J1-19 


20 


MAB1-1 




J 1-20 


21 


MAB3-1 




J 1-21 


22 


EMO6-0 




J 1-22 


23 


GND 




J 1-23 


24 


RAMS5-0 




J 1-24 


25 


REFCLK2-0 




J 1-25 


26 


+5 V 




J 1-26 


27 


-12 V 




J 1-27 


28 


GND 


| J1-28 


29 


RAMS3-0 


! J1-29 


30 


RAMS4-0 J 1-30 


31 


EMO2-0 ! 


J 1-31 


32 


RAMW-0 J 1-32 


33 


CS-0 J 1-33 


34 MAB5-1 i J 1-34 


35 MAB6-1 J 1-35 


36 EMI4-1 


J 1-36 


37 EMO4-0 J 1-37 


38 MAB7-1 ! J1-38 


39 MAB9-1 


J 1-39 


40 MAB8-1 


J 1-40 



4051 SERVICE VOL. 2 



3-11 



WIRE HARNESS 



MEMORY BOARD (cont) 



J10 


SIGNAL 


WIRE 
COLOR 


DESTINATION 




41 


MAB11-1 




J 1-41 


42 


MAB10-1 




J 1-42 


43 


EMI5-1 




J 1-43 


44 


EMO5-0 




J 1-44 


45 


EMI7-1 




J 1-45 


46 


EMO7-0 




J 1-46 


47 


EMI6-1 




J 1-47 


48 


RAMS7-0 




J 1-48 


49 


GND 




J 1-49 


50 


RAMS6-0 




J 1-50 


POWER SUPPLY 




J21 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+15 V 


2-3 


J3-36 




2 


+15 V 


2-3 


J3-17 


3 


+12 V 


2-1 


J3-34 


4 


GND 


0-N 


J3-18 


5 


GND 


0-N 


J3-37 


6 


-12 V 


7-0 


J3-35 


7 


-12 V 


7-0 


J3-16 


8 


RESTART-0 


9-1 


J3-15 


9 


+5 V 


2-0 


J3-33 




10 


+5 V 


2-0 


J3-14 










J22 


SIGNAL 


WIRE 
COLOR 


DESTINATION 




1 


-20 V 
LIMIT 


7-1 


3-13 


2 


+20 V 
UNREG 


2-49 


J82-1 


3 


GND 


0-N 


J82-3 
(Motor Common) 


4 


-20 V 
UNREG 


7-19 


J82-2 



3-12 



@ 



4051 SERVICE VOL. 2 



POWER SUPPLY (cont) 



WIRE HARNESS 



J23 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+20 V 
UNREG 


8-N (2) 


J50-4 


2 


GND 


8-N (0) 


J50-3 


3 


GND 


8-N 
Shield 


Open 


4 








5 








6 








7 


+12 V 
DECOUPLED 


2-1 


J40-1 


8 I -12 V 

' DECOUPLED 


7-0 


J 40-6 




J24 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


i 


+185 V 


2-69 


J51-2 


2 


1 




3 


+320 V 


2-59 


J51-1 


4 








5 


+20 V 
UNREG 


2-49 


J54-6 


6 


RG= 
HEATER 


1-N 


J 54-5 


7 


GND 


0-N 


J54-7 


8 


-20 V 
UNREG 


7-19 


J54-8 


KEYBOARD 


J30 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


KC0-1 


9-1 


J3-28 


2 


KC1-1 


9-2 


J3-27 


3 


KC2-1 


9-3 


J3-26 


4 


KC3-1 


9-4 


J3-25 


5 


KC4-1 


9-5 


J3-24 


6 


KC5-1 


9-6 


J3-23 


7 | KC6-1 


9-7 


J3-22 


8 ! TTY-0 


9-8 


J3-21 



4051 SERVICE VOL. 2 



3-13 



WIRE HARNESS 



KEYBOARD (cont) 



J31 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


KEY-1 


9-1 


J3-8 


2 


KBHALT-1 


9-2 


J3-7 


3 


SHIFT-0 


9-3 


J3-6 


4 


CTRL-0 


9-4 


J3-5 


5 


GND 


9-5 


J3-4 


6 


KBCLK-0 


9-6 


J3-3 


7 


+5 V 


9-7 


J3-2 



JOYSTICK CONNECTOR 



J40 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 
2 


+12 V 
(SELECT) 


2-1 


J23-7 
(Not used) 


3 


X JOY 


8-5 (2) 


J4-8 


4 


X JOY GND 


8-5 (0) 


J4-7 
Shield to solder lug 


5 


GND 


N 


Solder lug 


6 


-12 V 


7-0 


J23-8 


7 








8 


Y JOY 


8-6 (2) 


J4-6 


9 


Y JOY GND 


8-6 (0) 


J4-5 
Shield to solder lug 



DISPLAY BOARD 



J50 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


GND 


EMPTY 


4006 only 


2 


GND 


EMPTY 


4006 only 


3 


GND 


8-N (0) 


J23-2 


4 


+20 V 
UNREG 


8-N (2) 


J23-1 



3-14 



4051 SERVICE VOL 2 



WIRE HARNESS 



DISPLAY BOARD (cont) 



J51 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+320 V 


2-69 


J24-3 


2 


+185 V 


2-59 


J24-1 



J52 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


H.C. POT 1 


9-6 


H.C. POT (R1050) 


2 


H.C. POT 2 


9-8 


H.C. POT (R1050) 


3 


MAKE COPY-0 


9-04 


J41-11 


4 


WAIT-0 


9-05 


J41-14 


5 


INTER-0 


9-7 
Coax 


J41-5 


6 


INTER GND 


9-7 
Shield 


J41— Chassis Gnd 


7 


TARSI G-0 


9-8 


J41-7 


8 


TARSIG GND 


9-8 
Shield 


J41— Chassis Gnd 


9 


READ-0 


9-7 


J41-9 



J53 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


KBCOPY-0 


EMPTY 


(UNUSED) 


2 


COPY-0 


9-4 


J4-23 


3 


ZGND 


9-N 
Shield 


J4-17 


4 


Z-0 


9-N 
Coax 


J4-16 


5 


VIEW-1 


9-1 


J4-11 


6 


ERASE-0 


9-3 


J4-9 


7 


DRBUSY 


9-2 


J4-10 



4051 SERVICE VOL. 2 



3-15 



WIRE HARNESS 



DISPLAY BOARD (cont) 



J54 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 




EMPTY 


4006 only 


2 


GND 


0-N 


J4-20 


3 


-12 V 


7-0 


J4-19 


4 


+15 V 


2-3 


J4-22 


5 


F.G. HEATER 


1-N 


J24-6 


6 


+20 V 
UNREG 


2-49 


J24-5 


7 


GND 


0-N 


J24-7 


8 


-20 V 
UNREG 


7-19 


J24-8 


9 


+5 V 


2-0 


J4-21 



J55 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


Y 


9-1 
Coax 


J4-14 


2 


YGND 


9-1 
Shield 


J4-15 


3 


XGND 


9-2 
Shield 


J4-3 


4 


X 


9-2 
Coax 


J4-2 



J56 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


X RAMP RET 


8-N (0) 


J41-4 


2 


X HC RAMP IN 


8-N (2) 


J41-3 


3 


Y HC RAMP IN 


8-2 (2) 


J41-1 


4 


Y RAMP RET 


8-2 (0) 


J41-2 



J57 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


Y DFL COIL 


0-N 


To crt 


2 


X DFL COIL 


6-N 


deflection 


3 


X DFL COIL 


2-N 


coils 


4 


Y DFL COIL 


4-N 





3-16 



4051 SERVICE VOL. 2 



WIRE HARNESS 



DISPLAY BOARD (cont) 



J58 


SIGNAL 


WIRE 
COLOR 


DEFLECTION 


1 


-20 V 
UNREG 


9-1 


To crt 
storage and 


2 


F.G. HEATER 


9-2 


collomination 


3 


CE1 


9-3 


electrodes 


4 


STB 


9-4 




5 


CE2 


9-5 




6 


ANODE 


9-6 




7 








8 


CATHODE 


9-7 





J59 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 COPYEN-1 


9-5 


J4-4 



INDICATOR LIGHTS 



J60 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+12 V 


2-1 


J3-9 


2 


l/O-O 


1-3 


J3-29 


3 


BREAK-0 


1-4 


J3-10 


4 


BUSY-0 


1-5 


J3-32 


5 


SPEAKER 


1-6 


J3-12 


6 


GND 


0-N 


J3-30 



J61 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


SPEAKER 




speaker 


2 


BUSY-0 




speaker 



4051 SERVICE VOL. 2 



3-17 



WIRE HARNESS 



TAPE DRIVE BOARD 



J81 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


RESTART-0 




J2-1 


2 


GND 




J 2-2 


3 


GND 




J 2-3 


4 


GND 




J 2-4 


5 


GND 




J 2-5 


6 


GND 




J 2-6 


7 


GND 




J2-7 


8 


GND 




J 2-8 


9 


GND 




J 2-9 


10 


GND 




J2-10 


11 


GND 




J2-11 


12 


GND 




J2-12 


13 


GND 




J2-13 


14 


-12 V 




J2-14 


15 


+5 V 




J2-15 


16 


+5 V 




J2-16 


17 


+5 V 




J2-17 


18 


+15 V 




J2-18 


19 


LOADED-1 




J2-19 


20 


RCLK-1 




J2-20 


21 


WCLK-0 




J 2-21 


22 


MRDATA-1 




J2-22 


23 


TUTS-1 




J2-23 


24 


WDATA-1 




J2-24 


25 


TNIM-1 




J 2-25 


26 


DELAY OUT-1 




J2-26 


27 


SAFE-1 




J2-27 


28 


LOHOLE-1 




J 2-28 


29 


WR-0 




J 2-29 


30 


UPHOLE-1 




J2-30 


31 


FAST-1 




J2-31 


32 


REV-1 




J2-32 


33 


DRTAPE-0 




J 2-33 


34 


DELAY IN-0 




J 2-34 



3-18 



4051 SERVICE VOL. 2 



TAPE DRIVE BOARD (cont) 



WIRE HARNESS 



J82 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+20 V 
UNPEG 


2-49 


J22-2 


2 


-20 V 
UNREG 


7-19 


J 22-4 


3 


Motor GND 
Common 


0-N 


J 22-3 




J83 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+20 V 


9-3 


Emitter of Q1091 


2 


Motor 
Drive 


9-4 


Collector of Q1091 


3 


Positive 
Control 


9-5 


Base of Q1091 



J84 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


TAC 




Tape 




POSITIVE 
OUTPUT 




drive 
tachometer 


2 


TAC 
GROUND 







J85 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


Motor 
Drive 




Tape 
drive 
motor 




2 


Motor 
Common 






3 


Motor 
Shield 







4051 SERVICE VOL. 2 



3-19 



WIRE HARNESS 



TAPE DRIVE BOARD (cont) 






J86 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


-20 V 


9-0 


Emitter of Q1092 


2 


Motor 
Drive 


9-1 


Collector of Q1092 


3 


Negative 
Control 


9-2 


Base of Q1092 



J87 


SIGNAL 


WIRE 
COLOR 


DESTINATION 




1 


LOADED-1 


9-1 


J361-1 


2 


SAFE SW 


9-2 


J361-2 


3 


+15 V1 


9-3 


J361-3 




4 


+5 V 


9-4 


J 361 -4 


5 


GND 


9-5 


J361-5 


6 


UPHOLE 


9-6 


J361-6 




7 


LOHOLE 


9-7 


J361-7 


8 


LAMP ON 


9-8 


J360-1 




9 


LAMP ON 
RETURN 


9-N 


J360-2 



J88 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


Pickup Coil 




coil 


2 


Pickup Coil 




coil 


3 


Shield 




case 



J89 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


Pickup Coil 




coil 


2 


Pickup Coil 




coil 


3 


Shield 




case 



3-20 



4051 SERVICE VOL. 2 



WIRE HARNESS 



BACKPACK BOARD (Firmware Or Communications) 


P5-A 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


A1 


AB10-1 




J5-A1 


A2 1 


ROMDIS-1 




J5-A2 


A3 1 


HALT-0 




J 5- A3 


A4 1 


PIAS-0 




J5-A4 


A5 


RWOC-1 




J5-A5 


A6 


AB12-1 




J5-A6 


A7 


AB14-1 




J5-A7 


A8 


ABO-1 




J5-A8 


A9 


AB1-1 




J5-A9 


A10 


AB2-1 




J5-A10 


All 


AB3-1 




J5-A11 


A12 i -12 V 




J5-A12 


A13 ! -12 V 




J5-A13 


A14 | RBC-1 




J5-A14 


A15 DB1-1 




J5-A15 


A16 , DB3-1 i 


J5-A16 


A17 iRQ-0 ; 


J5-A17 


A18 DB6-1 | 


J5-A18 


A19 PIAE 




J5-A19 


A20 1 


MCP1-1 




J5-A20 


A21 1 


REFCLKO-0 




J5-A21 


A22 1 


REFCLK1-0 




J5-A22 


A23 


MCP2-1 




J5-A23 


A24 


EPIAS-0 




J5-A24 


A25 


+12 V 


J5-A25 



'For Processor Test Only 



4051 SERVICE VOL. 2 



3-21 



WIRE HARNESS 



BACKPACK BOARD (Firmware Or Communications) (cont) 



P5-B 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


B1 


GND 




J5-B1 


B2 


GND 




J5-B2 


B3 


+5 V 




J5-B3 


B4 


AB9-1 




J5-B4 


B5 


AB8-1 




J5-B5 


B6 


AB7-1 




J5-B6 


B7 


AB13-1 




J5-B7 


B8 


AB15-1 




J5-B8 


B9 2 


ABA-1 




J5-B9 


B10 2 






J5-B10 


B11 


AB6-1 




J5-B11 


B12 


AB5-1 




J5-B12 


B13 


AB4-1 




J5-B13 


B14 


AB11-1 




J5-B14 


B15 


DBO-1 




J5-B15 


B16 


DB2-1 




J5-B16 


B17 


DB4-1 




J5-B17 


B18 


DB5-1 




J5-B18 


B19 


DB7-1 




J5-B19 


B20 


RESTART-0 




J5-B20 


B21 2 






J5-B21 


B22 2 


REFCLK2-0 




J5-B22 


B23 2 


RDE-0 




J5-B23 


B24 


+5 V 




J5-B24 


B25 


GND 




J5-B25 



2 For Processor Test only. 



3-22 



4051 SERVICE VOL. 2 



WIRE HARNESS 



BACKPACK BOARD (Firmware Or Communications) (cont) 



J91-A 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


A1 


GND 




ROM PACK 


A2 


+5 V 




t 


i 


A3 


-12 V 






A4 


-12 V 






A5 


AB9-1 






A6 


PIAE-1 






A7 


EPIAS-1 






A8 


XPC3-0 






A9 


LBS-0 







A10 



A11 



A12 



A13 



A14 



A15 



A17 



A18 



XPC4-0 



RESTART-0 



XPC2-0 



AB14-1 



IRQ-0 



AB15-1 



A16 ! AB13-1 



AB12-1 



AB11-1 



A19 


RWOC-1 






A20 


BSX(L)-0 


! 




A21 


MCP2-1 


I 


' 


A22 


BS(L)-0 


! ROM 


PACK 



J91-B 




i 
SIGNAL | 


WIRE 
COLOR 


DESTINATION 


B1 


GND 


! 




ROM PACK 


B2 


+5 V 






, 


i 


B3 


AB10-1 









B4 


+12 V 


B5 


+12 V 


B6 


DBO-1 


B7 


AB8-1 


B8 


DB1-1 


B9 


AB7-1 


B10 


DB2-1 


B11 


DB4-1 



B12 



DB3-1 



t 
ROM PACK 



4051 SERVICE VOL. 2 



3-23 



WIRE HARNESS 



BACKPACK BOARD (Firmware Or Communications) (cont) 



J91-B 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


B13 


DB5-1 




ROM PACK 


B14 


ABO-1 






i 


B15 


DB6-1 






B16 


AB1-1 






B17 


DB7-1 






B18 


AB2-1 






B19 


AB6-1 






B20 


AB3-1 






B21 


AB5-1 




' 


B22 


AB4-1 




ROM PACK 



J92-A 


WIRE 
SIGNAL COLOR 


DESTINATION 


A1 


GND 


ROM PACK 



A2 


+5 V 




i 




A3 


-12 V 






A4 


-12 V 






A5 


AB9-1 






A6 


PIAE-1 






A7 


EPIAS-0 






A8 


XPC3-0 






A9 


LBS-0 






A10 


XPC4-0 






A11 


RESTART-0 






A12 


XPC2-0 






A13 


AB14-1 






A14 


IRQ-0 






A15 


AB15-1 






A16 


AB13-1 






A17 


AB12-1 






A18 


AB11-1 






A19 


RWOC-1 






A20 


BSX(R)-0 






A21 


MCP2-1 




r 


A22 


BS(R)-0 




ROM 


PACK 



3-24 



4051 SERVICE VOL 2 



WIRE HARNESS 



BACKPACK BOARD (Firmware Or Communications) (cont) 



J92-B 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


B1 


GND 




ROM PACK 


B2 


+5 V 




, 


{ 


B3 


ABiO-i 






B4 


+12 V 






B5 


+12 V 






B6 


DBO-1 






B7 


AB8-1 






B8 


DB1-1 






B9 


AB7-1 





B10 



B1 



DB2-1 



DB4-1 



B12 


DB3-1 




B13 


DB5-1 




B14 


ABO-1 


! 


B15 


DB6-1 





B16 


AB1-1 








B17 


DB7-1 




B18 


AB2-1 




B19 


AB6-1 




B20 


AB3-1 




' 




B21 


AB5-1 




r 


B22 


AB4-1 




ROM F 


>ACK 



4051 SERVICE VOL. 2 



3-25 



WIRE HARNESS 



COMMUNICATIONS l/F BOARD 



J93 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


GND 




RS-232 


2 


TDATA 




1 


L. 


3 


RDATA 






4 


RTS 






5 


CTS 






6 


DSR 






7 


GND 






8 


DCD 






9 








10 








11 


STXA 






12 


SRX 






13 








14 








15 








16 








17 








18 






19 


STXC | 




20 


DTR I 




21 








22 








23 








24 






' 


25 






RS- 


232 



3-26 



4051 SERVICE VOL. 2 



COMMUNICATIONS l/F BOARD (cont) 



WIRE HARNESS 



1 

1 

J94 | 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+5 V 




J95-1 


2 


+12 V 




J95-2 


3 


AB12-1 




J 95-3 


4 


AB15-1 




J95-4 


5 


AB0-1 




J95-5 


6 


DB1-1 




J95-6 


7 


DB3-1 




J95-7 


8 


DB5-1 




J95-8 


9 


DB7-1 




J95-9 


10 


AB14-1 


J95-10 


11 


AB7-1 


J95-11 


12 


AB8-1 


J95-12 


13 


AB9-1 


J95-13 


14 


AB10-1 


I J95-14 


15 


GND 


J95-15 


16 


GND 




J95-16 


17 


GND 




J95-17 


18 


+5 V 


J95-18 


19 


+12 V 


J95-19 


20 


AB13-1 


! J95-20 


21 


AB1-1 




J95-21 


22 


DB0-1 




J95-22 




DB2-1 


I — ~ ' — 


24 


DB4-1 


J95-24 


25 


DB6-1 


J95-25 


26 


AB11-1 


J95-26 


27 


AB6-1 


J95-27 


28 


BSOFL-0 


J95-28 


29 


BSCOM-0 


J 95-29 


30 


-5 V 


J95-30 


31 


AB2-1 


| J95-31 


32 


AB3-1 


J95-32 


33 


AB4-1 


J95-33 


34 


AB5-1 


J95-34 



4051 SERVICE VOL. 2 



3-27 



WIRE HARNESS 



COMMUNICATIONS l/F BOARD (cont) 



J95 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


+5 V 




J94-1 


2 


+12 V 




J94-2 


3 


AB12-1 




J94-3 


4 


AB15-1 




J94-4 


5 


AB0-1 




J94-5 


6 


DB1-1 




J94-6 


7 


DB3-1 




J94-7 


8 


DB5-1 




J94-8 


9 


DB7-1 




J94-9 


10 


AB14-1 




J94-10 


11 


AB7-1 




J94-11 


12 


AB8-1 




J94-12 


13 


AB9-1 




J94-13 


14 


AB10-1 




J94-14 


15 


GND 




J94-15 


16 


GND 




J94-16 


17 


GND 




J94-17 


18 


+5 V 




J94-18 


19 


+12 V 




J94-19 


20 


AB13-1 




J94-20 


21 


AB1-1 




J94-21 


22 


DB0-1 




J94-22 


23 


DB2-1 




J94-23 


24 


DB4-1 


J94-24 


25 


DB6-1 


J94-25 


26 


AB11-1 




J94-26 


27 


AB6-1 




J94-27 


28 


BSOFL-0 




J94-28 


29 


BSCOM-0 




J94-29 


30 


-5 V 




J94-30 


31 


AB2-1 




J94-31 


32 


AB3-1 




J94-32 


33 


AB4-1 




J94-33 


34 


AB5-1 




J 94-34 



3-28 



4051 SERVICE VOL. 2 



WIRE HARNESS 



TAPE STATUS BOARD 



J360 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


LAMP ON 


9-8 


J87-8 


2 


LAMP ON 
RETURN 


9-N 


J87-9 




J361 


SIGNAL 


WIRE 
COLOR 


DESTINATION 


1 


LOADED-1 


9-1 


J87-1 


2 


SAFE SW 


9-2 


J 87-2 


3 


+15 V1 


9-3 


J87-3 


4 


+5 V 


9-4 


J 87-4 


5 


GND 


9-5 


J 87-5 


6 


UPHOLE 


9-6 


J87-6 


7 


LOHOLE 


9-7 


J87-7 



4051 SERVICE VOL. 2 



3-29 



Section 4 
4051 SCHEMATICS 



Symbols and Reference Designators 

Electrical components shown on the diagrams are in the following units unless noted otherwise: 

Capacitors = Values one or greater are in picofarads (pF), 
Values less than one are in microfarads (/xF). 
Resistors = Ohms (Q.). 

Graphic symbols and class designation letters are based on ANSI Standard Y32.2-1975. 

Logic symbology is based on ANSI Y32. 14-1 973 in terms of positive logic. Logic symbols depict the logic 
function performed and may differ from the manufacturer's data. 

Abbreviations are based on ANSI Y1. 1-1 972. 

Other ANSI standards that are used in the preparation of diagrams by Tektronix, Inc. are: 

Y14.15, 1966 Drafting Practices. 
Y14.2, 1973 Line Conventions and Lettering. 

Y10.5, 1968 Letter Symbols for Quantities Used in Electrical Science and 

Eiectricai Engineering. 

The following prefix letters are used as reference designators to identify components or assemblies on the diagrams. 



A Assembly, separable or repairable 

(circuit board, etc) 

AT Attenuator, fixed or variable 

B Motor 

BT Battery 

C Capacitor, fixed or variable 

CB Circuit breaker 

CR Diode, signal or rectifier 

DL Delay line 

DS Indicating device (lamp) 

E Spark Gap, Ferrite bead 

F Fuse 

FL Filter 



HR 
HY 
J 
K 

L 
M 



R 
RT 



Heat dissipating device (heat sink, 

heat radiator, etc) 

Heater 

Hybrid circuit 

Connector, stationary portion 

Relay 

Inductor, fixed or variable 

Meter 

Connector, movable portion 

Transistor or silicon-controlled 

rectifier 

Resistor, fixed or variable 

Thermistor 



S Switch or contactor 

T Transformer 

TC Thermocouple 

TP Test point 

U Assembly, inseparable or non-repairable 
(integrated circuit, etc.) 

V Electron tube 

VR Voltage regulator (zener diode, etc.) 

W Wirestrap or cable 

Y Crystal 

Z Phase shifter 



The following special symbols may appear on the diagrams 

Strap or Link 

Cam Switch 
Closure Chart 
(Dot indicates 
switch closure) 



SEL Value Selected 
at Factory 




Plug to E.C. Board 



Identifies Panel 

1 Controls, Connectors and 

£>M-H »~-"" indicators 

Modified Component— See 
Parts List (Depicted in grey, 
or with grey outline) 



Plug Index 



Reference to Board 
and Sheet No. 



Test Voltage 



Internal 

Screwdriver 

Adjustment 



Board Name „ 

Board No. 

&70-XXXX-XX 

4051 SERVICE VOL. 2 



^VER." 1 

VERTICAL KMPUFlER^-3 



- Coaxial Connector 

— Shielding 

Heat Sink 

Decoupled or Filtered 
Voltage 

Etched Circuit Board 
Outlined in Black 

Schematic Name 
Sheet No. 



4-1 



Board Sequence No. 



4051 SCHEMATICS 



1. TRUE HIGH and TRUE LOW Signals 

Signal names on the schematics are followed by -1 or -0. A TRUE HIGH signal is indicated by 
— 1, and a TRUE LOW signal is indicated by —0. 

SIGNAL-1 = TRUE HIGH 
SIGNAL-0 = TRUE LOW 



2. Cross-References 

Schematic cross-references (from/to information) are included on the schematics. The "from" 
reference only indicates the signal "source," and the "to" reference lists all loads where the 
signal is used. All from/to information will be enclosed in parenthesis. 



From J350 pin 6 and 
board 1 , sheet 5 



(J350-6, 1-5) XI 
(1-6) Y-1 



=r> 



From board 1, 
sheet 6 




INPUT SIGNAL 
(TRUE HIGH) 



To board 1 , sheet 5, 
etc. 




XY-0 (1-5,3-7.4-6) 



OUTPUT SIGNAL 
(TRUE LOW) 



Board # 


Name of Board 


Schematic Section 


1 


Power Supply 




2 


CPU 




3 


Memory 




4 


Display 


4051 Schematics 


5 


Keyboard 




6 


Tape Drive 




7 


Tape Status 




8 


Indicator Lights 




9 


Firmware Backpack 


Firmware Backpack 


10 


Communication Interface 


Communication Backpack 


11 


Communication ROM 



4-2 



4051 SERVICE VOL. 2 



+I8SV UNREG 




1 2286-1 3 




Power Supply board 670-4005-00. 



IN5TP-UM6.NT: 

405I 



(JO 



4051 SERVICE VOL. 2 



J84--5 



J2I-2 f +-15VOLTS 

^47 /U f . — ■ -na volts 

'T?50 



2286-13 




■1-aOVOLTS 



j.23-1 CUN^-EXa) 



F.G., H^ATE.^. 



1 J ^ 3 +IEVOLT& 



GND 



J2I-7 -laVOLTe 



-la volts 

acT je4-8 CD&COUPLfcD*) 
jez-<\ -EOVOLTS 

^OVOLTS 

(linait&d) 



INSTP-UMeNT: 


670-«?-OOS 


boa^d: p 0W £p 30PPLY 


PAGE.: 

1-1 


diagp-AJw: NJON . TTL SUPPUE.S 



@ 




INSTRUMENT : 

4051 



J2^-3 



m 



+J_CIOI 
I5QmF 



Rll 
I20K 



+320V0LTe> 
(ONREG) 



J24-/ 



m 



+ -L C IOI 

\50/aF 



+ 185V UNRLG 



RIOI 
IOOK 



+I85VOLT5 
CONREG) 



rh 



G421 

<800Q*cF 



/77 




R542 
5IO 
AW 



C£52 
00Z2^cF 

R554 Q s, =»_fl 
G80 



W\ — • — * 



♦-AAA/ — t 



0541A -iav 

*S55S 



QSS1 



G54IB 

A/5558 u_ 

VR531 £" 




■ , (f); H f CR55 ' 

R251 J± 



J21-8 



RE START- O 



J2I-9 



» » » 



+ 5V 



J2I-I0 



4-5 VOLTS 



C551 



VV\ 



6 7O-400S 



& °^' LD: POWER SOPPLY 



OlAJ&pXW: TTU | COLUMATION 

SUPPLIES 



pa.ce.: 

1-a 



@ 



-> 




* 






rt 


r* 




r> 


<■» 









_T 








> 


i 


1 


in 


W 


^^ 



> > 

+ + 
A 



of 



-|<-S 



i 

-9 



< 

i 

in 

> 

+ 



*6 
f — It — g 

in 




r<) 



sitf" 



o 
> 

in 

+ 



INSTtUJKAtNT: 

-305! 



CPU board 670-4008-00. 



4051 SERVICE VOL. 2 




U(571 .^.J.2 U771 
r"WF -C672!-.** ! 



<# ; jMi»*.r:R883>!* R *8 5 -.JoiR99o 



r "R6TOi 



:ii : vii 

U665... 'UTb'i 

•r» 

U655 .m« 

m M 



C765 

m 



CR878' r-s «;• » . 

CR877 *» •-' ft- w> ' 

CR876. ; „: 

^ r£sv£; ^caT^ : -R971 

' 'VSSS.A:. R877-- ! 



I ••C765P' CRS694 
to '<N . 




'.370 
S-S"-S S ^S69« C963 

S*' 5 3 S -•' ' R 8 » 6 J R 964 • . ■. .V 
ir. oo .oo .co •-Hjv"vJR963i • C961 1 

*{&<>" C *R96U R - 9 - 62 >jR"965- 

~ "iSi.' R854» '* «*#»>R956 >•£&?,. '^ ft 4 ' 

.... I *.i . „„„• CQ'iG 1 W ■ 

Xpoo • -C853JC854 "W ""3*:-'- «-»Jr >* 

CRSS2 . * IWEJi'S (, 953 lC. ' '■*■■■ 

Ml 



'4. * 

U7B5jSCR8S 

# """ 

;f '■fctC751 n *V 5 V CR§50t H{1 >* 1 • i J*. J •* 5; ■$ R952#: 



«C967i^ 

raft 

•IS* 




oO 



^ AJ 



r aj 
o _r 



-3 



4*1 



<9u- 



+-K-t 






^ 



» 
-7 



IV 

< 

I 

in 
0- 

> 

+ 



I #c5 



*° 



^ 



5- 






d 



in 
A) 



aJ 

I 
> 

in 

+ 



-J 
< 
i 
AJ 






Aj ^ 






in 



$ © © ® © 







cc o 






D 

Z 

o 



v9 
i 

0} 

U-'f- A) 



z 



(2 
< 

< 

i 
J) 

-> 
i 

n > 
> i 






<0 



55 & 



°,4 



)\^ 



V 



^8 



>i0 



cr* 
oirvj 



^1 



-)\ — ^ 



^^^ 2 



f-a— ^ f-^~ ^ 



oO 



1^ 



o 

ul 

h 



Si 





AJ 



Z 
O 
Dd 
Li. 

UJ 

X 



AJ 



UJ 
& 

4. 

V- 

o 

h 

a 

UJ 
U- 
UJ 

DL 



r\ hi 
















cO >- 


UJ 

uJ 
(V 




oO 


sr 

a 


in 


in 
oO 

d 


tf Ot 


J) - 


<> 




ii 


M 


it 


ll 


n " 


>r $ 


^ 




r- 


CO 


c* 


o 


— AJ 


I* 

-' Mi 


o 




DL 


ot 


a 


of 


Ot Od 


*^ 


z 


l^ 

rV 


OJ 


— 




AJ 


v9 ^S 


\J 




1 







CO 


on 


cO 


h- cO 






ii 


II 


n 


of 
II 


at oi 
ii i) 


z 
O s2 


_) 


^ 




AJ 


tf 


T 


in v5 


o 

u. 


ui 
0i 


5 


OL 


at 


od 


oL a 



l_. 




.J 



^N&TiUJ^AtNT: 




bo*M>: cpu &0ARD 


Z-1 


D.A,<bp.^: poweR D|STWftuT10N 



<s> 



V7 

/2.5 MHz 



R/3$ 




© 



a 



o/o/o 

TVS 04- RI2 
Ik 



U/Q/E 
74S04 






© 



8 



©3 



UII5 
74L5IG4- 
13 



Qe 

Qd 

Qc 
Qe 
Qa 
A B 



> 



QH 

QQ 
Qf 
Qe 
Qd 
Qc 
Qb 



©3 



A & 



Qa 



ii 



10 



U2I 
74LS/64- 



12 



// 



10 



10 



II 



UIOSC 
74LSII J 8 



a 



/ 7 6 5 4 



o 



3 15 13 II 10 12 14 



U/ll 
74SI33 



U33S 
74LS93 



$■ 



/<*. 



Roi QD 

Ro2.p c 



cA 



Qb 
qa 



ii 



8 



12. 



zy 



UIOSB 
74LSII 



l3s^J2 



IX 



UI35F 
74LS04 



13 



UI35A 
74LS04 
2 



^ 




U33IC 

74LSOO 



UI-25 



REFCLK2-0 



U235A 
74LS20 



< ^ S ' B22 ) REFCLKZ-O 



->. R.CCLk.-0(2.-G) 




U/27D 
74LSOO 



df~4 



JS-A22 



REFCLKI-O 
-$ REFCLKI-O 



-y^^y 



REFCLV«Z5-oC-7) 



US-A2I 



U235B 
74LS20 



$ REFCLK0-O 



VI05A ' U2/SC 
74LSII 74LS37 







U/27A 
74LS0O 



U^hlA 
7<*CSOO 



UI25A _1 
74Q0N 




JS-A20 



> MCPI-I 



U/25B 
1400N 



— +-MCPI-0 C-V) 
J5-823y RDE-O 



UI25D £. 
740ON 



U125C [10 
140QN g 




^ MCPZ-\ 



JS-A23 



MCP2-0 C-^0 



imstrumemt: 
4051 


€>7O~400a-0l 


board: CP( j BOARD 


page: 

z-z 


diagram: MASTER CLOCK GEN. 



®> 



+SY 



J5-6/S 



C-a) MCP/~o 



C-a) MCPZ-o 



-> OB0-I 
>08/-/ 

:> OB3-I 



> 065-/ 

> 066-/ 
>06 7-/ 



(-9,fcty/,/«,/€>) 



HALT-O £ 



TZQ-0 ^ S ' A ' 7 



REST^F-T-O 



RESTART- ^05-fea-Q 




f 
RES-O 



^46/4-/ 

A3/S-/ 



/a/stizumbkjt: 
405 1 


e7O-*0O<3-0/ 


aa4^o; CPU BOARD 


page: 


d/aqram: CENTRAL PROCESSING UNIT 



@> 



MGM^Bl^L. 






U4&7 






U4&1 

MCM<b&3a\_ 



c-v> 



^AE>10 
AE>^- 
AE>&- 
AE>1- 
AB><b- 
( AE>E>- 
AE>4- 
Afc>3- 
AE>e- 
AE>1- 

^AE>0- 



-1 
-1 
-1 
1 
1 
1 
1 
1 
1 
1 
■1 





a 


A 10 




aa 


A^ 
As 

At 
A & 

A*> 

A 4 

A3 

A E 

Ai 

Ao 

CE 


£1 




ao 


* 


i«b 


* 


14 


* 


13 


^ 


11 




10 




9 




S 


^* 








o 



e>v<. 

BANK 



"> 



> 







1<b 




17 


^^^ 


1& 




19 




7 


Q> 




=> 




4 


^ 



D£>7-1 



~\ 



oe>fe-i 

Dfc>4--1 
DE>3>-1 
D&a-1 
DB>1-1 



>C-^ 



a3 



X J 



a4 



12. 



£ 



-+iav 

-sv 



-t-'bV 



R£>C-1 /0S-A14 



:Rm 

a.4\< 



<-^> 




Ua71& 

74LS04 

3r^~4 



U2.11 A 
74l_%a.O 



^ 



> 



-\Z 



13 



0^ 




Oia/l© 
74LS,3>a. 



U19SA 
74L<b3>a 



019^0 
74LV3"a 



74\-*>3>"£. 



74L. < b3>a 



OaTbD 
74l_«b"37 



(-3) AE><b-1 



+ «=,v 



741 =>4 



(-3) AB1S-1 



Ua71E. 
74L«b04 




0»1 



^c^ 



+SV 



R173 
E.41C 



R174< 

a.4*.« 



R172. 
a.4-K< 



<-*W 



rAB14 
AE>13 
ABia. 

V.A&11 



-1 



-1 



.-1 



ao 



2.1 



aa 



-1 



S3 



C 
A 



o 
1 

a 

3 
4 

<b 

1 
& 

io 
11 
1*. 

13 
14 
1S 



uia/ic 

74L%3>a 



10 '^; 

33> 



ROM ADDRESS 

DLCODtR 



ia 



13 



11 



o 



1o 



UI^E. 
74U304 



10 



U1Z.1D 
74\_%3>a. 



ia 



OS-A4v P\A<b-0 



lP^A*b-0 
(-9,10,11,14, 1<b) 



"l3Qo 11 J ' b ~ A24 ) £P\A < b-0 



U3V\D 
74\JbOO 



1o 



11 



13 



14 



1«b 



1<© 



17 



-Wr- 
RG>E> 
=>^o 



ROME-«b - O ^ 

ROMEXb-O 

R0ME.7-0 

ROML&-0 

ROML^-O 

ROME.1 

R0Mt11-0 

ROME.ia.-0 

R0ML13-0 

ROME-14-Oy 



o-o / v 



ROMei'b-o C-^> 



instrument: 

40S1 


<*70-<400e>-01 


BOARD". cpu &OA Q_ D 


PAOE.: 


DIAGRAM'. ROM PAGE. DeCODE.R 



<s> 



^RGMES-O 

Rowt&-o 

(-4-) < ROMtl-O 
ROME0»-O 



r 



C-3) / 



^ 



AB>10-1 

A&^ -1 

AE>8>-1 

ABTT-1 

AB<b-1 

Ab*b-1 

AM--1 

Afc>3-1 

AS>^.-1 

AB1-1 

AfcO-1 



r 



<-4) { 



\. 



ROME/WO 
ROME14-0 
ROMETi-O 
ROMEA^-O 
ROMEM-O 
ROMEIO-O 







;? 




a 


A C,E 

A<* 

A 8 

A 7 
A<b 
Ac, 

A* 

A>> 

A^ 

Ai 

A© 


^ 


^^ 




ai 




^o 




1«=> 


^* 


14 




1% 




11 




10 




^ 




s 















note: av_\_ row\ CH\Pb have 

IDENTICAL IKPUTS ^ OUTPUTS 



U3SS 



U32>1 
MCM<b&3^.L 



MCM<b332A_ 



MCM<b8^L 



U«b^1 
MCMG632.U 








Q. 



CE 



o 7 

O^ 

01 

Oo 
V D D 
Vcc 
V S s 



V, 



BB 



1G> 



18 



19 



„ D&1-1 
Doo'i 

De>s-1 

D^>4-i 
DB.3-1 

de^-1 

DB>1-1 
DE>0-1 



"N 



)(r^) 



£3 + VZ.V 
12. 



^ 



^ 



-sv 



U497 
MCMG83ZL 



U49 I 5> 



U4<M 



U3^S 
MCMG>S3£L 



MCM<o8^\- 



MCM<bS3£.L 



instrument; 

40S1 



&io-<iooa-oi 



5>OARD*. 



CPU bOARD 



DIAGRAM'. 



2£\C ROM 



PACE- 

2-S 



@ 



c-^> - 



(-2) A&I5>-| 
A&I4-1 
A&13-I 
A&IZ-I 



C-*} - 



C-3) - 



Abll-I 
A&IO-t 

A&e-i 

ABS-I 

MCP1- 

A&7-I 
A&<b-I 
A&l -I 
A&2.-I 






(-3} - 



A&«b-I 
A&4-I 

Ae>0-i 



■Z.4fc-'S 

i 

U-2.2.7N 



13 



+5>V 



U2.Z7P 



+ £V 



OZ."2.7E> 



+5>V 



U2/2.7C 



r — W 



43V 



UZ/Z7D 



+^V 



U2/2.7M 



IZ 



+ 5>V 



R4-€>9 



+ 5V 



RA<i»7 



+ 5V 



U337 T 

74»-W2> 



-c>& ^A 



14-, 



c> A Qb 



^ 






12 



8 



R4^2- 



+ 5V 



R.^6>5 



| — Wv 



+ 5V 



P-4^5 



+ 5V 



R<V«>1 



+ 5V 



♦ 

2..4K's 



INSTF4JME.NT: 



74L*>I3S © - 



Ca-ZA 



<:&ze> YAI> 



ai 



Yl I> 



Y€>;> 



Y5;> 



C 

A 



Y3 3i 



YZ> 



Yl } 



V0 ^ 



JO 



nII 



JZ 



J3 



J* 



J 9 



UZIS 

74L«»I57 






^-*A 
Z& 



13 



^ 



5B 



^4A 



J? 



IY 
ZY 
2>Y 
4Y 



U4-^>£> 
74LSI«=>7 



to 



13 



REFRESH ADDRE.'^'b 
COUNTER 



2>A 
2>B 

4E» 
(A 

IB 

za 
ze> 



SY 
4-Y 
IY 



ZY 
<2» €> 



© 



P 



>, 



© 



U217A 

74LS74 



ft 



io 



D r Q 



© 



U2.I7B 

74L-574 



l«? 



14- 



J2> 



io 



<b 



15> 



1Z 



1Z 



U4-3I 
74-L-e>^"7 



4A 
4-B 
IK 



G» ^ 



II 



ze> 



4Y 
IY 
*>Y 
ZY 



12- 



Cp7O-4-OO6-0 



"^ 



e>oAp-D : 



CPU 



DIAApAMt 



JI-4& 



Jl-^o 



* P-AMS>7-0 



JI-Z4 



* PAM5(b-0 



JI-30. 



JI-Z9 



P-AMS>5>-0 
J2-AM64-0 



Jl-(b 



* l^AM33-0 



RAM52-0 



-► RAM50-0 C-7) 



Jl-41 



NAABIl- I 



0I-4Z, MA&IO-l 
NAAB9-1 



J I -59 



J 1-40, MA&&-I 



— (-&) 



J'-^fe- MA£>7- 



MA&I-I 



Ji-zo, 



ji- 



C-eO 



* MAe>^-i 

fl MA54-I 
* MAB2>-I 
_* MA50-I 



-C-eO 



-► \ce>cnc-o c-s) 



i^-AN\ pjeFfL^3H 






" J1-1A 



"Ji-i-b ¥ji-i?. 



EiMOl-O tMI2--l E.W\02.-0 tMl^-1 tM03>-0 

■jl-li fjl-lO f J\-2»l fjl-15 f J1-1G 



c-o- 



MAfc>0-i 
MABA - 1 
MAbl- 1 
M A£>3> - 1 
MA£b4--i 

MAfefc-1 
MAoT - i 

mae>&-i 

MAb^-1 
MA£>iO-l 

L MAMM 



R.AM esV.OC\CStltCTO?. 



(-Z)R.E.FCL\CO-0 _ 

(- <©) R-AMSi - O _* *L 

(-fe>)RAM^O-0 -*. L 




R-Cfcl-l(-&} 



Rcto-i(-a) 



NOT^*. ALL P-AM CH\PS 
AP-fc-ID^YOnCAL 
TO Ubi^tUSlb 



(-"*>) R/W-O 

(-Z^MCPZ- i 
R.WOC-1 ^ J*=> ~^ 
(-^ABl'b- 1 



P-AMW-0(-8) 
__ RAVANA/-0 

■ cs>-o 






o^w^wi-. STANDARD RAM 



PAC*^*. 



(-T)RCEl- 1 



MAH>0 - 1 -► 

MAB/2- - 1 _*, 

MA£*A- 1 _* 

MAB(b-1 _*> 
MAE>1-1 
MA^&-1 _! 

MA&10-1 _^ 



U 



MAblV'l 



(--O p.CE.O-1 



C-7)cj=>-o _„ 

(-7) p.AMW-0 _* 



(-7)RWlC2r1 




EtsAlA-i EMOA-O tMIS-1 £.MO*b-0 tMl<o-l tMO<b-0 ElMI7-1 EM07-O 

"j\-B<b fji-37 fjl-A^ fjl-44 f Ji-47 fji-^?L f J1-4S Ji-4fe" 



B\T *=> 



D (» 



DE>4 -!(-■*>) 



D «> 



"7; 



10 



USVbM 



MCM 
<b<©OBV 




MCM 



BO\3<b 




14 



Z..4K. 



U3>U 

MCM 

<fefcOS\_ 



U4-il 
MCM 



MCM 



UA2A 
MCM 

ao\3t 



D£>*b -!(-*>) 



DE><b-H-^>) 



£>\T 7 





11 



1?- 






DE>T-i (~"2>) 



instrument: 

AO^l 



(bio-4ooa-oi 



^o^o: C p\j £>QARD 



ova^km: ^TAUOARD RAM 



z-s 



@ 



C-3) IRQ-O 

/DB0-I 

DBi-i 

\DB2-I 

(-3) ^DB4-I 
/ DB5 = i 
/ DB6H 
DB7-1 
\ AB3H 
\AB5~I 
(-4) IPIAS-O 
/'AB0-/ 
\ ABM 

) PIAE-J 

(^RES-O 
+5V 



MCG82Q 



C-10) X D/A 



XJOY 

Xjov cbND 



38 

|37 



33 



32 



31 



30 



29 



28 



27 



ee> 



82 



ZA 



23 



36 



35 



2l 



25 



34 



20 



^ 



IRQA 



PA0 



IRQB 

D0 

Dl 

D3 
D4 
D5 
D6 



PAI 
PA2 
PA3 
PA4 
PA5 
PA6 
PA7 



CAI 

cAa 



D7 
CS0 

cs? 

5?~ 

R/l/ PB3 
§-- PB5 
VDO PB& 

vss P87 



I3 



14 



16 



17 



-H2V 



Q999 
>M7»0C 
8 



(-11) Y D/A 



YOOY 

J4-5 
YJOY GMD ■— £ 




+5V 



R999 
3K 



+ 5V 



R998 
3K 



R888 ^C999 



OSyuF 



(-G) KBCLK-O 



-!2V 



03-28 



3 




03-27 


— ■ 


4 




03-2& 


-"■ 


5 




U3-25 


■ 


€> 




03-24 




7 




J3-2S 


— ■ 


8 




03-22 


■ 


9 




03~2i 




40 




03-8 


'■ 


39 




J3-7 


™ 


IO 


►SH\FT-0(2-\^) 


03-5 




II 




03-<3 


— ■ 
—a 



us<i5e> 

74 \<o 3| 



U8^"bA 
-^ 74!<2>ir^?l 



U845E 
74l<2> 



U8-35F 
741G> 



c*> 



8 



■3^ 



R942 
5GO 

j Wv £ 



03-10 



03-29 



U845D 
74 1 <&H 



-AW— 

R944 
IO 



R*34l 
560 



03-32 



H>^ 



U845C 
74K&N 



7^7 



_J-C945 
^-^ F J3-i2 



R943 .03-30 

1BO ^ | 



KC0-1 
KCI-I 

Kce-i 

KC3-1 
KC4-1 
KC5-I 
KC&-I 
TTY-O 

KEY- I 

KBH ALT- \ 

SHIFT-O 
CTRU-O 



BREAK-O 

I/O-O 

BOSY-O 

SPEAKER 
GND 



+5V 



„ XERR.-1 C-\b) 



:m* 



„ REN-1 C-\7) 



J7 



74LS32. 



LOAD- O (-!«=>) 



„ EOI-I (-17) 



^YERR-l (-)S) 



Ll^ KBCLK-O 



»MSTR4JKAtNT: 

^051 



G70-400&-01 



@ 



bo^o: cpu BQARD 



DIA,0>pJkM! 



keyboard/ooystick 

INTERFACE 



p*<bE.: 

2-9 



+ 5V 



(-^f/SQ-O 



36 



37 



33 



'D&0-I -*> 

DBI-/ ♦ — — 

D82-/ »» 3/ 

D63 -, ^-JO 

C _ ^)S D64-/ 

DB5-I •* 2 



DB6-; ■*- 



27 



087-/ -»- 



26 



22 



482-/ h 
>464-J ♦ — ^ 



(-<»)/PlAS-0^ — ^ 3 - 
/A8GJ-/ -► 36 



Lei-/ ^* 
C-*V RW-l *— ^ i 



25 



(PIAE-I ■*> 

l 34 

\RES-0 -* — — 



+5/ 



20 



jM 



Mr!!™ R«S 

7<»LSO<V 
9 "r ^o IO fc VEN-O 



IRQA 

IRQB 

D0 

Dl 

D2 

D3 

D4 

D5 PB7 

D6 



PA7 
PA€> 
PAS 
PAM- 
PAS 
PAZ 
PA I 



PA0 



PB& 



07 
CS0 
CSI 
CS2 



CB/ 



PB5 



P84 



PB2 
P6I 



R.S0 

RSI PB3 

ftAV 

E 

RES 

/DO PB0 

CAI 
CA2 



a 



VECTOR.-0 



R<fe56 
20K 



U79\C 
74 \ 7N 



+5V 

— o 



R791 



R79a 



►4-7 K S4.7K 



C^ 



3|\4 



VPOLSE-1 (-\£) 



0* 

U79IB 
7417 N 



■ 

04-e> 



COPY- O 
ERASE-O 



DRBUSY-O (-)■£) 
J4-IQ 



■H5V 



-n.sv 



&IAS 



U875B 
NSS5S 



X CHAR 
D/A 



53K l,o 



C£582 



// 



D 

it 



ssasS 



/7 



/2 



16 



13 



9 



IB 



VIEW cause C-r*> 



/5 



/4 



/3 



12 



10 



19 



*0 



6 



U665D 
74LS04 



39 » APOT-Q (-IS) 



/D /<? 
2D 2Q 

3D 3<3 



4D 4Q 
!> C 



U785 
7 7^ LSI 75 



*J 



CR678 



n 



CR877 



/0 



W 



CR876 



/5 



W 



CR87S 



/3 



J4 



40 4Q 

50 5Q 

60 &Q 

3D 3Q 

2D 2Q 

ID JQ 



> 



U77S 
74LSI74 



T 



/o 



« 



CR874 



12 



« 



CRS72 



15 



« 



CR870 



« 



CE873 



« 



CR87I 



*J 



CR869 



S 



Q pi A A A ; 



BUFCLK-I D/A CONVEP-T£jL 

(-lljlct^ 



U8GO 




DRBOSr-O 



. X D/A 



+ I5V. C-0 



INSTRUMENT: 

4051 



670- 4008-0/ 



&o*fU>: 



CPU BOARD 



DIAXspAM: 



DISPLAY X 
D TO A CONVERTER 



PAXbt: 



© 



U&55F 
74LSQ4 r-*>SB£ C-W> 



B _ 74LS04 r-*»SB4 (-\<0 _ 
5 {>o^ ' * 



C/6550 
74LS04 



74LS04 MS>SA0 




SB0 C-W) 



U75S 
74LSI74 



SB1 (-i*0 



/4 



SB3 HO 



/3 



SB5 C-\<0 



N 



SB<Z> C-lO 



SB7 H<0 



Tl 



C-lS> SA1 



ID /Q 

60 6Q 

2D 2Q 

5D 5Q 

3D 3Q 



4D 4Q 
■> C 



T 



■« 



CR8SO 



/5 



« 



« 



CRS52 



CRS5I 



12 



« 



CR8S3 



« 



CR854 



/O 



« 



CR655 



13 



12 



BUFCLK-I » 1 9 ^ c 



ID /Q 

4D 4Q 

ZD 2Q 

3D 3Q 



■M 



CRSS6 



■tt 



CRS57 



■w 



CR36J 



« 



CR862 



RDBYTE-l (-!=>) 



74LS/75 



C£8S9 



+ /51/ 



R95I 

2M 

— w\ — 

«955 

/.036M 

— vw — 

£954 

317.1k. 

— VW 

£953 

258.5* 

— VA 



£952 

128*93 ik. 

— VW 

R949 

64.3 74 k 

— VA 



32J40k 
-*Ah 



7 ~G>\~3 2 // '^L // "7 G 3 2 'Sk 



l£.046k 
-^VA 



6.01 15 
A^A 



4.000 k 
-A*A 



•HSV, c-0 



UQ<oO 



4 — 4 — 4 — 4 — t 



4 4 4 4 



073 ID 

-rjt is? L 



CM5)SA3 



•^^ U7&IC 



■ R883 ±R882>fc88l J>R89fe^l5897 i-R898 

;4J|c <4.7k <4.7k <4.7k £4.7k <4.7k Rae7 



£853 
5/./k 



0560 
3.3 2 k 



(-1«S)SA4- 



1 ,«« 8 I > 



_78/C 

74J6N 

S 



74 /6N 



C-\^SA5 



{>^ 



C-^>SA€» 



<-VE>")SA7 



U79IE 
74-I7N 



U791F 
7417 H 



U79ID 
7417 N 

9v^A_ 



W 



6/561 
MC66ZO 



CRS8S 
V7 



CR884 



■• — • 



CR8S3 



■• — • 



CR896 



OiUbK 

-AW 4 

4»OSfc 
-^w — 4 

£885 
2.05 k 



VA — 



R99/ 

S.06lc 

-VA — 

£992 

4.02 k 

-AVv — 4 

R993 

2.05k 

_^A, 1 



"• 3Y BIAS 
YCHAfc. D/A 

_^ XCHAR D/A (-lo) 




^Y D/A 



N55S& 



y y f y y 



CR897 CR898 



+ 5V 




G70-40O8-O/ 



&o/kp-D: 



CPU BOARD 



DlA*<bpAM: 



DISPLAY Y 
D TO A CONVERTER 




@ 



+ 15V 



X F1UTER 



+ 5V 

U77IA iR996 
74LS04 I 1.8k Q<$&\ 

VECTO R-o -^-^^ i-AVS, — ,<^V— » 

(-10) 



Q9S2. 




R990 

4.7 k 



VYV 



X D/A 

C-»o) 




;R983 
'47k 



m 



-20V (LIMITED) 
6WREG 

C963 
470 




0875A 
N5558 



TPX 



R867 
7<2>.SK 



VECTOR T^MLR. 
R<b7t 
JIIK 



^4-l4 g X 

^ 4 " ; b xgnd 



C872 j_ C964 



CG7I 



7/ r— ♦ 

0.1 _L 
/ sli4 



BUFCLK-I 
•7<2>.e>K 



/2 



*4> 



-A/W- +5/ 



^.1 

IJ5 



U67/B 
96L02 



Y FILTER 



+ /5V 

R854^ CS53 
100 ? '/< F 



Q933 




YT\ 



C96I 
470 



R9G5 

39 M 
-Wv 



C962 
.Ol 



R9€>3 
Zl Ok 




US55A 
N55S8 



R96I 

100 ? i^r 



C854- T C 95I 
.Ol 



-w\ 

R964 
7<2>.8K 



Y D/A 
(-10 



U6658 
74LS04 



VEN-O 



±fc> 



U783 
7^LS02 



U79SD 
74LS00 



+5f 



C895 R895 

•°°' &SO 

— )| wv — 



R894 



R794 

aoK 




VPUL.SE-1 (-10) 



U795C 
74LS0O 



30 k 
1 — vw- 



R96E 
76.8* 



C896 
.OOI 

Hh- 



R893 
30k 

n WV- 

R892 
680 



AW 





U7958 
74LS00 



U795A NO BORN 
74LS00 C ( L _^° 



TP Y 



c/4-2 



Y 



N J4-3 

^— — ■ Y GMD 



S 



J^-zo 



Q795 



S\G GND 

(4-0 



v\\ 



lMSTIUJMfcNT: 

4051 



670-4008-02 



BO *' u:>: CPU BOARD 



oi^cp^m: D1SPLAY VECTOR GEN 






@ 



+5V 



(-10) &OFCUOM 



SHIFT-O 



DRBUSY-O. 



SOT-O 



C-IO) ADOT-O 
C-jO) VE.N-0 



ZVECT-O 



+5V 



R677 
2CK 




+5V 

I 

R793 
■4JK 




R<&76 
27K 



OCbTI 



RG74 
4,7 K 



+5V 



13 r02 



3 -o 



0771 
74LS04 



VEU-O (-te) 



C695 r 



10 



f V/V WV-A-+5V 

R&95 ffi\ 

7 2 '5K R 68 5^ ^ 

20K 



Q 



\ 



(J693B 



H 4-V7mS 



+5V 
CURSOR 
INTENS. 



R683 
20k 



C69a x~" 



2 



Rfc92 
5.03K 



'5 



Q 



\ 



CHM*. 
1NTENS, 



-Q 



13 




(J693A 

N7^aai 

37-IS"=>nS 



07S3D 
74LSOE 

7rr> 



HOLD MODE 
OSC\LATOfi. 



^R68l ^ 
VIEWCAUSfcH ^uoK 
C-lo> 



C084 -L 




+ 5V 



R684 
4.7 K 



J-r 



J4- i i 



VIEW- I 



1 

TP VIEW 



/77 



C683 
.O^uF 



TR X 



S>^ — H* — %ys- 



74i-SOa 74US04 



^>£ 



^ 



J4-I6 

■ 



Z-O 



7-4LS08 



74*17 "' 



\^L_\"7 



^ M ' ' Z- GND 



74LS04 






£?70-<*OOS>-0\ 


k»*»: cp(J B0 ARD 


2-13 




oiaapaw: D | 5PLAY HOLD $ Z TIMING 



(^ 



(-15) 


FMARK-I 


(-■3) 


NMl-O 




/DB0-I 




DBI-l 




DBd-t 


C-B) < 


) DB3-I 
\DB4-I 




/ DB5-I 


1 


DBG-1 




DB7-I 




\ ABe-i 




\AB3-I 


(-4) 


IPIAS-O 




/AB0-I 


(-3^ < 


j ABI-I 

NR/W-I 




/PIAE-I 




^RES-O 




+5V 


(-2.) 


MTCLK-O 


(-M,I3) SOT-O 


c-v> 


NMI-O 




/DB0-I 




DBi-l 




\ DBe-l 


(-3) < 


/ DB3-I 

)db4-i 




/ DB5-I 




DB6-I 




, DB7-I 




\ AB3-1 




\AB4-I 


C--0 


IPIAS-O 




/^AB0-t 


c-*> < 


\ ABI-I 
< R/W-l 




JPlAE-l 




VRES-O 




+5V 




U7G?I 
741G5N 



/SB0 _»> 
I SB1 
\SB2 



OTllC 
74LS02 



M DATA -I 




J2-24 



WDATA-I 



056IB 
MCG620 



4JG,G£7 H 2 CLOCK 



08II 
74LS90 



TP 
WCLK 



^> A <* 




Q72IA 
74LS04 



te 



$A S 2 



II 



(J8e3 

74LS90 









& 



2TU 



GICG-I 



FICG-t 



WENABLE-l 



£ 



WRITE, DATA, 

REGISTER. 



07I5B 
74LSOO 



WR.\TE. 

CLOCK 



U7aic 

74LSO-4 



a* 



r^ 



^ 



071IB 
74L502 



0781 B 
74LS04 



13 



sL> 



U7J5D 

74LSOO 



D Q 



> 



TT 



.£> ^ 



L>^> 



07I3A 
74 US 74 



U7I\D 



133^ 



- wclk-o 



07I5C 
74LSOO 



U7IIA 
7402 



J2-29 



J£-3t 



oia-3a 



ja-33 



WR-O 
FAST-I 
REV- 1 
DRTAPE-O 



C-l^ 



F\CG-» (-15) 



oe-34 



DELAY \N-\ 



03GIB 
MC<2>820 



RDBYTE-I 
(-15) 






3^ 

m«S 



+5V 

1NTER.F\LE. 
GAP ^EM^>E. 



TP 
FILFND 



I 



FS ENABLE.- 1 



Yr* OQI5B 
'° 96L03 



► FILFND-I 
(-\S) 



os-es 



oe-3o 



* LOHOLE-1 
^ (JPHOLE-1 



IN^TPAJKAtNT: 

4051 



£70-4008-0/ 



•o^p: CpQ B q ARD 



TXMbfLKhAl TAPE 



CONTROL 
(PIA B PORTIONS) 






6> 



+5>v 



DRTAPE-O 
C->40 



MRDATA- 



J2-22 



RjCLfc.- 



J2-20 



DELAY OUT- I 

TUTS -I 
TNIM-I 

safe.-i 

LOADED- I 



(-14) 



F1LFND-I . 
C-14) 
J2-2fc> 



J2'23 



J2.-ZE? 



jz-zi 



JZ-19 

■ 



P-fce>TA\2T-0 

C-3) 



U1Z! E 
74LS04 



U72! D 
74LS04 






*TO v 



R.7 22 
*vVV- 




WE.AD DATA 



J^_ 



U6I5 
9bLOZ 



ICC TIME.R 
C8I<2> F-Slfc 
.004-7 2<b.l|C 



r^O 



^k^WV + 



5V 



<3 
Q 

4 



£»* 



6 



14 



+ 5V 

5 



U6>&5>C 
74L/304 



i«- 



cn 2.1 

U7*>! 
74I&4 



e>i qh 

QF 
QE 

aD 

ac 

OB 
QA 



> 



12> 



^ 



lO 



40mS 



U&2J3 rt>G^ 
74L5S0 bl 

2^3 



£ 13 



U7Z1F 
74LS04 



BIT 
COUNT 



1 



U7I^A 
74USOO 



ICO 
COUNT 

II 



i<^c-o 



3 

vi io 
14 



7 4Le>eo 



o> 



■ QD 



^MARK--l 



8 /40 



<ii 



+5>V 



FLT13 



I 



C7I3 

530 



LOAD SWITCH 
DENOUNCE. 



11 



10 



D Q 



7i 



U7I3E> 

74L674 



39 



LDCtk-l 



(6 






& 



U77 1E 

74Lf=04 

-1L|>!S_ 



o^ — 



CA1 

CA2 

PA0 

PA! 

PA2 

PA^ 
PA4- 
PA5 
PAG 

PAT 



076 I A 

741£> 



— C-'O 



SA0 

5A! 

5AZ. 

^>A?> 

SA4- 

6A*=> 

SAG* 



^D&YT&.- i 

C-iO 

PAAAR.VL-1 

C-14) 




U3G>1 A 

Mce>e>2.o 



J4--4 



COPYEN- 



LOAD-0 
C-9) 



tN<bTPAJN\ENT: 

4051 


fe70-40OB-O! 


&OAR.D: cpu BOA ^ D 


2-15 

, i 


diagram: TAPE. MONITOR. 
CPIA A portion^ 



@ 



14-LSOZ 



Mczeao 



(->>} IRQ-O 



(r*> 



c-<0 



(-*> 




0/05-/ 



DI06-J 



0107-1 



Dioa-i 



TALK-O 



DI04-/ 



DIQ3-I 



D102-I 



D101-I 



BOI-I 
M7) 



H 



1 



081 
MG34-4I 



TALk-1 (-17) 



fi3 > 
81 :> 



73 

/a 

ii 

10 60b 

202/ 22 £3 

lo 



uzet 

8097 



9 



TALfc-O 



0/ 
02 
03 

04 
fcl 



7/ 

u 

13 
14 
Kb 



G& 



IF 



6 



IO 



14 



14 



W W H W 



U6-I6, 



US-IS 



J6-I4- 



J6-/3 



O/08-O 
O/07-o 
DI0G-O 
DI0S-O 



13 



II 

5 



a 



1 



OI81 
MC3441 



13 S3 > 

72 S2 5 

7/ S/ > 

10 80 > 

26 Ei 22 23 

10 



UI83A 
8097 



TALK- 1 



o/ 
02 
03 
04- 



II 
IZ 
13 
14 



CGI 



10 



14 



W U H W 



J6-4 



15 



<Jfe-3 



Jfe-2 



J6-/ 



D/04-O 
0103-0 
DI02-O 
DIOJ-O 



TALK-O (-17) 



DAV-I (-17) 



1NST1UJNAENT: 
4-OSI 



670-4006-0/ 



@ 



&oap-d: 



CPU BOARD 



DIACbpJkNv: 



GPI& INTERFACE 



page.: 

a-16 



(-Ifc) DAV-\ 



(-)G>) TAUK-I 



UA 



UI93C 

T4LS0a 



U9I 

MC344f 



P85 

PB1 
PB0 



+5V 



Z// 



/3 ATN-O 



RE85 
5.0>K 



it> 



U1S3A 
7«LSO£ 



/a 



// 



/3 



// /PC-/ 



/o £0/-/ 



MC6820 



<-<3) REN -I 



d 



/3 
70 



63 y 
62 P 
-31 
60 



,/s 



UI9I 
MG3441 






J6-6 



DAI/-0 
NDAC-O 







^fe-9 - ;fc-o 



^6>-5 a £0/-0 



^O/-/ (-<*,\&) 



40BI 


670-4006-0/ 


BO * M>: CPU BOARD 


PA.&E.: 


o,^*: Gpm JNTERFACE 



@ 



RAMW-O 



cs-o 



CS-o 



J/0-33 



R279 
/OO 



RAMW-Om 



J /OS 2 



— A^W- 

#373 
/OO 



GCE4-I 



U36/ 

MCM 

G60SI. 



U35I 
MCM 
€>60SL 



U34/ 

MCM 
&GOSL 



O£,-*,<0 



+61/ 



/6 



JZEFCLK1-OW 



J/0-4 



/eAMS^-O 
G4MS3-0 

*AMsa-o 



J/0-30 



/I. 



j/o-es 



U/Q-J& 



* 



/4 



+/2V 

— n 



VCC VDOi VDDs 
GFR. 



SELC 

dsiTa 



C SELA 



dlSELD 
CP G/VD £/ E2 



S 



/a 



13 



/o 



YV\ 



058/ 

MC34G0 



-I 



MAB0-I 
MABI-I 
MABZ-I 
MAB3-t 

%%i ^ J j%.i% m MA&7-I 

*U73 ^ JlQ-42 m A1AB9 " ' 
^/Z-t Vv\ — u /° zr. ■ MABIO-I 

MA6/I-/ 




+> GCEE-I 



INSTRUMENT* 
4051 



67Q-4-O04 



@ 



oo**o: MEMORY BOARD 1 



RAM BLOCKS Z,3 3 4- 



3-1 



U3<ol 

MCM 
G6QSL. 



U35I 
MCM 



U34/ 

MCM 



c-*,vo 



#37/ 



A278 




RCE4-I 



&3 79 A A A J/0-/8 mm ,*a~~. 

*f.f» VW u /°-Z°W MAB/-/ 



*3Z2^/^ QIC- 17 



AVv K,° ^ ■ /W/484-/ 



wv 



UIO-34 



m MAB5-I 



SSf^vHgg^MAS:; 



/2/7P 7/ A JIQ-4.Q i mAB Z 



A^v\ — , ,:> X:: 8 MAB.8- 



* 1 g/75 ^ J/24/ " ^AS/O-/ 



a/ote: all 

ges/stor.s 
above are 

/OOCl 



GCE3-I 



note: all ram chips 

ARE IDENTICAL 
TO 0341 £ U37I 






670-4004 



soavd: MEMORY BOARD 1 



RAM BLOCKS 2,3,4. 





■2286-15 



Memory boards, 16K (Option 20) 670-4004-01, 24K (Option 21} 670-4004-02 
and 32K (Option 22) 670-4004-03. 



4051 SERVICE VOL. 2 



+tzv 

+/ZV 



J/0 



BCE4-I 




X34/ 

ao 



+/21/ 



+SV 



J/0-B& 



0J = 



-r- .47 
i c g/ C/7/.C27/, 
C37/ t C4te,C57/ 



ca } c/z, czz>C32, C42, 

CSZ, 00,2. CIOZ , Cf/Z t C/ZZ. 

c^ZiCt+z^zoz^z/ZiCzzz. 
c/sz^/zziczaz^z^czsz, 

CZ&Z. C30Z.C3/Z, C3ZZ, C33Z, 
C34Z', CSSZ, C36Z, C40Z, C4-I2 , 
C422, C432, C44Z, C4SZ,C+GZ, 
CSOZ, CS/2, CSZZj CS3Z, C54Z, 
CSS2.CSG2 



EMI4-I 

A 



>e*4/ 
zo 



<-/) *CE3-t 



tl_C55/ I 



,j: 



G>&/jF 






+5V 
(3-0 -\ 



C3,C/03,C203j 
C303,C503,C+03 



HSV 

-SV- 

CS-O ■ 

KAMW-O- 



77 



US 3 1 
MCM 



EM04--0 



zz 



IL 



QND 
QND 
QND 
QND 
QND 
QND 
QND 



J 10- 5 



Z 



3,/Z 



UIO-7 



j to -a 



UIO-9 



J/0-23 
J 10- 28 
J tO- 4- 9 



VR.4-71 
S./\7 



ZO 
(-0&CEZ-I ■*« WV 



-/ai/ • 



J/0-2 7 



R47I 
470 
— -WV- 



I £ 



i 



7 



y'T.os 



C4-7B 

SyUf 

5V 



VDD 

vcc 



ce 



c CS 



A0 
At 
A2 
A3 
A4 
AS 
AS 
A7 
AS 
A9 
VS$,P$ A/0 

o, <4" 



%/w 



/3 



21 



to 



19 



SQ_ 



U32I 

MCM 

Geost 



f- MAB0-T 
h- MAB1-I 
i— MABZ-/ 
MA&h-l 
MABA-I 
MAB&'t 
MA5&-/ 
MA 67-/ 
MA68-/ 
MA69-/ 
MA&ZO-/ 
MAS//-/ 

U43I 

MCM 



T 6.8/jF 



.05 - CI, Oil, C2I, C3/, 047, CSt, 

C6/, C/0/,C/// t CtZlj C/3/.C /4/, 
CA5/, c/et, czo/.cz/t. CZZt, 

CZ3I, CZ4/, CZSt, C2G/, C30/ t 
C3tt,C3Z/ t C33t, C34/,C3S/, 
C3€>/, C40t, C4ft, C4Z/ t C43/. 
C+4-t, C4S/, C46t, CSO/, C5// t 
CS2/,CS3/,CS<?-/, CSS/, CSG/ 




053/ 

MCM 
QQ05L 



EMI4-/ 



'to -37 



EM04^0 




U3II 

MCM 
QSOSL 



<rO 



MCM 

I OOVOL 



UJIQ' 43 
EMIS-/ 




U30I 

MCM 



U40I 

MCM 



U5II 

MCM 

eeosi 



£MOG-0 




U50I 

MCM 
G6Q5L 



instrument: 

4051 



<&70'4004 



<s> 



board: MEMORY BOARD 1 



D/AGR.AM: 



RAM BLOCKS 2,3,4- 



paqe : 

3-E 



GCE7-1 



+SV +/ZV 



/e 



REFCLKZ-0\ 
R.AMS7-0 I 
#AMSQ>-0 I 
GAAfSS-O I 



J/O-25 



U/O-48 



U/O-SO 



U 10-24 



It. 



^-^cseTd 



l/CC l/DO, VDDz 
RFR C 



SEL C 



c sez.4 



CP <3*SD £"/ £2 



a 



/£ 



/3 



/O 






NOTE: ALL RAM CHIPS 
ARE IDENTICAL 
TO U27I 



#3/ 

20 




07/ 

MCM 



■AW 



*C£6-/ 



*S3 

20 



>ea5 

20 




£CE5-I 



(-0 




EMI0-/ 

(-0 




RCE7-I 



0/7/ 

MCM 

6€>OSL 




MAB0-I 
AfA&l-l 
MA&Z-I 
MAB3-1 
MAB4-T , s 
MAB5-/ (r\) 
MABb-l 
M487-/ 

MA53-/ 

MAS/O-I 

MA6//-/ 



<7£7/ 

MCM 
&605L 



EMO0-O 

(-0 






4 




XT 



05/ 

MCM 



04/ 

MCM 
660SL 



U/G/ 

MCM 

e&osL 



0/5/ 

MCM 
G60SL 



02GI 

MCM 
&SOSL 




0/41 

MCM 



025/ 

MCM 

eeost 







+> GCES-I 



OZ41 

MCM 
€>€>OSL 



instrument: 
4051 


G70-400+ 


BOAKD: MEMORY BOARD 2 


3-B 


o/aoram: (^ am BLOCKS 5,<o,7 



&CE7-r 



R4-I 
20 



03/ 

MCM 
G605L 



&CEG>-i •»■ — WV 



C^) 



R/4-/ 

20 



NOTE: ALL RAM CHIPS 
ARE IDENTICAL 
TO U83 



GCES-/ 



c-o - 




0/3/ 

MCM 



*T 



uai 

MCM 



MA80-I 

MA&l-l 

MABZ-I 

MAB3-I 

MA34-I 

MABS-l 

MAftfc-/ 

MASS-/ 

r»Ae>io-i 

MA&n-L 




'(V\) 



6^3/ 

MCM 
&GQ5L 



0/2/ 
MCM 

eeost 




rU 



6/// 

MCM 





| 6^2/ 
i /WC/V/ 
660SZ- 




(7/// 

eeosL 



ill 

MCM 



oau 

MCM 
<o60SL 




0/0/ 

MCM 

6GOSL 




080/ 

MCM 



* 


4 


4 


4 


* 


4 


4 


4 


EMI4-) 


EM04-O 


EM15-I 


£VW05-0 


SMI &-/ 


£/if06-O 


SMI 7-1 


EM07-O 


(-a) 


(-£) 


(-£) 


c-a) 


C-s) 


C-2) 


c-^ 


('*> 



INSTRUMENT : 

4051 




504*0: MEMORY BOARD 1 


3-<1 


o/agkam: ^LfKtA e>LOC)ce> *>,<b,7 



X P-MAP P&T 



XHC ftfcMP I N 







AAAXE. copy-o 



Y HC p.AJ*P I N jS?**--* 



2&ND *^3> 

TAJM>\<e-« 



^051 



^O 






3 ■ GWD 



<2D 



DISPLAY MPX -q-1 

G70- 4087-00,OI,02,O2> 




AAAX& COPY-O 



TN2. i =>l&-0 



<2D 



DISPLAY MPX <q-1 

G70- -4087-00,01,02,05 



I 
I 



R299 
,"R298 
;>.,iR297S 
JU296. 
JR295 
^R294 



R798 

„R599 R797 

.R498, : ^598.-3^ R699: ..,R796 

.CR497 rR1 -V?R597i569aR698: ;R795:- 

CR396 ..,', IA Qfi. SS.&L Qpf R697- . ; R794- 



CR398 
,CR397 
"R398 



JU296ta CR39C .. u4 q 6 . fcSIS^Y fS|rR697- 'R794- 

JMR296K 'CR395 • *^ I . CRb ., 9 ^R595^ BF .R696T-R793' 

. 3 %294r - ?g^9^ OK *ooRF.94 ;R694; -.-^R/92L 

iiRl9^ • :R293j R393IR392 i R494CR593 R592 . ^r G33 . — - 



R199- 

^1^97^196. 

.££01930196 
VRtf9"'lRl92 • *R293> ; R 393IR392 i.g2g^,V" wa ^R592- -RG93. J >IU791 

^1^?!igi^R290^«3SW E 5S|?.'- :-^B||fU«fiS 8 ^R7B7;! 

0R86R Ri89?C286R287: !g^2* R483 ?M*R583 

^"-i S ?:SlliS»iR284r: U381 Q481JQ482*-!; ( R581 
fFn» l ? £R478> ■'"£ *c R 578. 
•R377, ..; r3?7 U5?J 
•'■'•83?|-- «CR476 .R576. 
; g375- ; -lcR475 :CR575 
R374 0473; .R574. 



( 



r CR82 

' CR81 

R 17(v •*•*-'— 
- /A *C175 



-R2845 
.'R282J 



' - C177. "R281J! 
R2 80|fc , 




JR682 
' R68'r. 
;R679; 
R678' 

CRb78 j 
CR677.' 

' ? Q674 

;R673 



+ C370 




,^C R"1 6§ ."- :7'r^^R^S*^-S3TP«ifi 
7JR168' . r '' ;R369!> .^R468} 1 *^7 
167te»V. R267r^^£468R467Lii^iii«S, 

Q165| ^VR265 f ;Q^^k;gfgg- 
£ *»„ ST c «26n C3641 R4B4: . i 
[* . ]R264-"^ •C363r , R4B3.?' 

Q162lR262aHkKserr<«tiiH461 & 



C671jC672 ! 

C668IC669-* 

-■■"Uf- U»1 

■*»- * *..! 




»CR59 #: Waal ^bO^ -"" j 



R461 
R460 
C459 



^£" TP257; :.VR358*R4553 
■* k _ - ^.C257R257r..R357 -R454 
lfffi^fe^o^'^; , U255^R356 , * R453' 

F!R"T54^C255jR255S^Tr!rf*:R45l! 
.'R1535-^»R254^; .C353'R450 




R652, 
R651t 




( 



DS31\J 



C439 , tq 
R439i -^ 

R438*£ 539 
C437 .. 
■X TP33SL* ^R436 ! . . 
,«.«>„. T «n ,^» a i»R236i-^ _Q338/ "■4J££L*' . < 

«* •'• P??? y^5& R ^-3f(Q432 mounted 
C R 328 \ft Si Vfi^ "R427» 



^:^]^R129^_. 
k.C29KQ?§ TTR128 



DS28 ,%5" ; R28?T- CR12| 

^#it2S ^lle'" 
^Rii^p.^^cR^^p^ 

r -<CR23 >-£g£UjRi22 & R S|C325# 3 ri5 lUAP 11 
1 PSI8C' CR21® 22?';R22||:^R3^ »*^ 

-RiikRli^^UiR^i^ll^ 





■Mr - r licyi|i: 






2286-16^ 



Display boards 670-4087-00, 670-4087-01, 670-4087-02, 670-4087-03, or assembly. 



4051 SERVICE VOL. 2 



+320V 



+I85V 



DRBOSY-O 



F.<k. Wf^TC.^ 



+ I5V 



GtNO 



ERASE -O* 



+ e>v 



-lev 



view-i 




^1051 



<?> 



STORAGE ^-a 

670-«»067-00 



DRBOSY-O 




VIEW 



@ 



STORAGE ^l-aA 

C7O-<lO©T-OI,O2,05 



X AMP 



+20 VOCTS 



U54-«> 



R672 
+ 15 VOLTS J5 £l^ 



SIG GND B > SIG GND 

/-^.^ JS4-7 
GND .__ £ 

• RC.70 

— Ic VOUT5 ■ vw 



-fcO VOLTS 



Y AMP 

<-0 




BIAS C-0 



J54-8 



». DYNAMIC FOCOS 
(-4) 



^1051 



(5) 



DEFLECTION AMPS 4-3 

<i70-40S7- 00,01,02., o\ 



DYNAMIC FOCUS 




ONLY) 



HIGH VOLTAGE £ Z AXIS «-«l 

G>70- ^061-00,01, OljO'i 



<305! 



R97 
C96T 



^«JQ95«fQt93 

* ir<i^i^£%i||RJ< 



VR196 
.R196 
C196 



CR91 R190* 

•^Aovi* ' R ^ 9, iiU 

tiff™!?! MR 176^^^ 
*"* J" r i£ 1 ?£iR272 

R74 



»#■*■» ■wear"*-: 

I 



R293 
*R2923L " < 
'C29W-. 
.R290 
,R289 

C286' 

R286>.. 

R284* ' 

R28Qi * 

R273 : 

• :W" 

R271 



R495 
R494 

J^R493 i 
R492 



R478«* 



R473 S 

R472 i 
R471L 



R597 R598 

•R595 

R594 

CR593 

CR592 

>"R588 



CR575 , ..j 
CR573 



R695 



R686 



R794^ ; 

R793^* 

R791' %; 

R789""£, 1 
R785* 

rR784';?i 
R783 t> 

•R782" 
R781; ■;] 

8fi777.Jj| 
R776 ' .1 
R775 . T 

R772 ' 
R770i ti 



i&WK 



J56| 

IBiSi 



Y RAMP R£T 



IK 

Y HC RAMP IK1 ■ WV 



Jo/ 1? • • *;*••» 



■rtW 



R169 



cr67 ~ 

R67 1 ' 
R66 



SkUSS 

CR169;' 
R168 "" 



C370 



giBi^ R267^C468^ 67i . , 

■'T'TP VR266 lQ366r( ;JC466 ;^566| 

C64'P.-Q1 65 + , VR265 Q364 „ .g2g§;; 



, R672 
C671.Q672, ; 

•R670' 
C668 C669 . 

Z Z. "<j J54 



J55 



'liif ii i r - '" R264 v . DH 'C363v ■ .r/ik'V V?U561.I «k«? ; 2 - 



C62! 

; R61j 

CRb9 

*R59j 



Cb64 
R663' 
R662 



J59 



C661J,, 



|J58 



[ T154 

f * ■'■it. -* i» 

i »>* a" 
** ■ • 
«r?R485! 



R264 "' ' ''^7^363^ R463 

R263'.Q3blQ3 62 ;-: $!%$ 

n i fi?i, - R 262 '„ ^ J^i .. f .R 46 1 

Q16 3,r iR261- :r"R3b1 R460 ^~!-«<*i:R661 

r , «rq R260' .,— "-360 .^ *IR*59 SyaMS R660 
c ^9 ,.^ g259 Q459 C459 W^ ^ 

«Jb8 TP 25 C 7 258 V R R | 5 5 7 « « §456 .gQgggg.. g|f . 

wu»-4£ 25 Zi i9«'' :R356 5311 -R655 • 



J53 



X HC RAMP IKJ 



R154! >R255r. R353-.I 



>R450^ 



R153?ij. :v ?; "R254 R or, 2 C353r 
R15|!:-• R252-R2&.3R5gi ' CR450i 
R1497R249;Q251|CR350 

R148.W/- 



R348 
^248^347,: 



!;R449 
R448 

-R447. j 
•R446 



0)44 5 



: ' Q47 ^L CR45 CWP 2 *?""*-: R346i 
■ - .-'C44^*i.«. ria6.:. j R246^. , r345 

,*— . * ^:fR44||" ' ^'fc' R244NJ. R344 

K Q41 .fcjfciLg4ji fr^. „ , R242»*i^.«;-i£?.* R443 

. i± ■ . . <Ji HU*W<, R •, 40 < Ko4l 



R548 
;,R546; 
,;C545 
CR545, 

L545 • 
,R545' 

R544 



'-Pilfer.-'- •• *w m -»j R339| 

'' f R36r*l R 135JK: 1 36 ''' '"J 

iL'WiR33^^Rl32 
R32bqj-y«R131 



C433 ■; 



•R652 
R651 

o 

'J52 ':? 



J51 



R235' 



TP339? 
Q338"'^ 



C437 

k 4**R436 

C435 :-| 



R439,q 5 3 9 : \ 
R438 ** 



DS31I 



R-?36^ ? ' R435m R434 . i 
C232, 



J50 



DS28 
DS27 



^ ^0433^*^^ 

"rR99- Q2 9 '•' ei ?R«Q23Vr3^2 R 333f ^.JCR432': ' " £/ 
ttCR29 jR2gh R128^- -."^R33ir^;^. r ' IIQ432 



R27 



C228 Q32lQ329R43Wc R429? 
R228 • CR328» -512^ft- ,^/ 



.t»"4.r»A/ R127. 

^L27'%- R126. „„_, wi.^<.» njl , is v.,., 
R2ff*>«R2b , * n „, ni «V R227.4CR327. • ^28^R427 

•^C25. Q r l2 _2 Q123 D ^, >/ 3 U R326«;. C427.Tf>^5...». vS 



mounted 
on back) 



|"Sv*?"CR24. -R123;; R224 j 
«P 2 3r.CR22,-^R122. ^R223: 
CR20CR2T 'CR122* 
i R19 fr R21 : R121. .„,-, 
iS5TSS«pCR121 ii R 2 21 



€325: :« 
R324 n 




2286-17 



Display board 670-4087-06. 




4051 SERVICE VOL. 2 



^OSI 



@ 



Y RAMP RET 



R73\ 
IK 

Y HC RAMP IK] ■ VW 



X HC GWN iB, ' E< <RS9T P ° S 
©f' OOK 



Y GNO 



X SNID 



X RAMP RET 



X HC RAMP 1K1 




+ISV2. 



R7e4 



R7S5 
— VA 



R588 +1 & v e 
Y HC GAIN 1S/2.K ^Y HC POS 
-»<R59S 
© 1IOOK 



tR783 ^68fc 
ilOK. IOOK 



V 



GOPYE.N-\ 



+ 15 VOLTS 



J5G--2. 



J5e- 



•R777 

:s.g<sk 




VR.875 



VRS73 i Q _ a 



ORIGIN-O- 
vw 



GMDI 



+5 VOLTS I 



IJ54-4 
|j54-7 



— f *4I5V Z 

TLCG7I 

_-r io^f 



-; 



S.IG GUD 



J54-<3 
.054-1 



+1 CS50 

SIG GND 
R£>70 



■ + 5V 



-ie VOLTSB- 



-Wr 



IJ54-3 



XcS72. 

+T io^f 



-I2Vj 



•2D VOLTS ■- 



J54-S 



^r 



C£fe8 
+T fc-S^F 



>l 



■RG>52 
:4"70 



INJTER-O 



READ-O 



IJ5-2.-S 



IJ52-& 



-I-5V 



;RfcSl 



J52-9 +5V 

^R453 
<4-7K 



U552A 

7438 



WAIT -O ■ 

1052.-4- 
H. 6NDI : 1> 



JJS3.-3 



:Rfe55 



S.-0 



J53-4 



Y 

OUT 



XGE.OM 
IOK 



+ I5V 2 



IDLlOieA. 
5 X. DFL 



U585 

Ml 54 



IO YAMP 



+ 5V 




DEFLECTION MULTIPLEXE-fl. 
(HC-D\=>PA_AY} 



YGtOM 



C659 
4-7 



ll 



h' 



• RGGI 




R492 
\OKT© 



+ 2.0 VOLTS 



+ 5V 



C&&9 



1 30 

nS 



(D 



U55"7E> 

742ZI 



IO 



4-5V 

I 

U555C ks54 

74l€> <4_7K 
M>^- 



U55ZC 

74-3B 



U555B > 
741& I 



+sv 

R(2>5& 



4^K- 



13 



L> 



RGSB 
277K 



fc.a^F I 



+ sv 



HARD COPY £ ZAX\S CONTROL 



:R4&5 
"IK 



!tr c: ct^n 



COPYE.N-1 (-G>) 



E MPX-O C-7) 



COPY -Ol 
KB COPY-O I 



T/XRSiO- 



R54-G 
J53-E IK 
-wv 



XL> 



U552B 
743s 



U55ZD 

74-3S 




TA.RSIG-O 
GKJD 



MAKE COPY-O 



405' 



£T7 2-05<V<o-05 



DEFLECTION CIRCUITRY -4-5 



+ 320V 

+I85V 
+20V 

+ I5V 



DRBOSY-O 



^ +I75VC-7) 



TARSIG-1 



ERASE -O 



CHASSIS 
CahiO 



+ 5.V 



-lov 



G.ND 



+15 VOL.T5> 

+ S VOLT*. 

&NO 

SPARE 

SPARE 




2.0V 



05&-7 ' ' F.C HEATER. 
— -m SPARE 



4051 



@ 



CRT R&ADOUT 5 STORAGE 6 +175 VOLTS REGOLATOR ^-G 

$>"7d-05«K,-05> 



DYNAMIC FOCUS 
C-S) 




+ 520V 



+ I50V *\NiODE. 2. 



HIGH V™ TAf=.P * 7 AVK 

£>T "Z- 054& -05 



4051 



+5V 



+5V 



GND 



031-7 



031-5 



KBCLK-O 



031-<b 




KfcHALT-l 




03\-£ 



Keyboard 670-4002-00. 



(I 10 



7-393 



QB 

i QC 

QD 

R0, R0 e 



m 



INeTPAJKAtNT: 

^051 



S>7< 



@ 



4051 SERVICE VOL. 2 



+5V 



LH 
74\53 



► R2 >R3 >R4 >R5 ^Rfc >R7 >R8 >R9 
;4.7K £4.7K £4.7K <4.7K £4.7K £4.7K £4.7K <*q.7\C 



+5V 



GND 



031-7 



1 



031-5 



CI 
.05 



rh 



+5V 



.OS 



HEX 
DECODER 



18. 



KBCLK-O 



<Jh\-<b 



KSHALT-l 




19 



031- 



>;m-:s 



U<bD 
74 OO 



U3 
7493 



U<oC 
74 OO 



8 14, 



QA 

QB 

A QG 

B QD 

k J3 



12 



A? 



23 



22 



21 



20 



Gl 
&2 



14 p fe 

15 WL 



:I5 



13 



Hitts 



A B C Y 



U4 
7493 



<■ — C 



QB 

2> QC 

QD 

R0, R0 e 



/77 



8 



U2 
7<I51 



U5A 
7473 



14 



3 



vj Q 



— O 



12 



USE> 
7473 



<> 



^ 



-"TT- 



& 



r 



■~i 



i sample. of 
1 Switches 

\ DV ON MATR\Xi 



3 \ 



v_ 



I I 

StttFT KEYS +5V 
Jl 



.J 



J31-3 



\2 



Fs 




SHIFT-O 



CONTROL 



^-O O 



TTY LOCK 



031-4 



CTR.L-0 



+5V 



.RIO 
►4.7 K 






03O-8 



TTY-O 



r^y 



03\-\ 



KE.Y-1 



U<oA 
7400 



03O-7 



KC<b-\ 
~ fe ^ KCS-1 
~ s m KC4M 
KC^-I 
KC£-^ 

kco-i 



-4 



-3 



-2 



-I 



JNeTtUJKAtNT: 

^05! 



^70-4002-00 



& 



&o*|*.d: 



DIKepAfA! 



KEYBOARD 



KEYBOARD 



p*ge: 

5-1 



RESTART- O 



+ 1=>V. SAFE SW 



RESTART-0 



OSl-\ 



061-2.7 



SAFE-t 



WR-O 



081-23 



WDATA-l 



oa»-a^ 



wclk-o 



osi-a\ 



NJODRWE-l 
(-2-) 




RCU<-» 



MRDATA-1 



1NSTRAJKAE.NT: 




& °" ,fc ' D: TAPE "DRIVE. BOARD 


PA<bE.: 

G-1 


diaapam: HLAD AMPURLR 



@ 



061-27 



SAFE-i 



: Fser 




RCLK-! 



q, 06\-2S 

MR.DATA-* 



R.EAD t>ATA 
l_ATCH 




@ 



ao/kp-D: 



TAPE DRIVE. &OAELD 



Di^epAhA: 



HEAD AMPLIFIER 



G-1 



Tape Drive board 670-4003-00. 



2286-1 S 



4051 SERVICE VOL. 2 



SEMSE END 
Op HAMP 



J87-6 
UPHOLE m 



RESTART-O 



LOHOLE 



J87-7 



DRTAPE-O 



REV- 1 



FAST- 1 




R493 

J87 -8 ZOO 

LAMP ON m % 9 aa/v 



J8I-33 



J81-32 



RAMP 
(-3) 



J8I-3I 



INSTRUMENT: 

4051 


R37I 
IK ^ 
+ 5V VA ► (?) 


^ TAPE DfcJVE BOARD 


pAee.: 


* * v "^ xL/ 


diagram: 

MOTOR- COMTP.OL 



«s> 



DELAY IN- 1 



08»-3>4 



+20V 



QI09I 



-H6V, 



SERVO 



H.E.R.O .-> v 



RAMP 




C590 
0022 



— A/W— 

R59I 
470K 



J_C59l 

.ooaz 



G595 



RS94 
402 



O MOTOR 
SPEED AtXJ 








fcTP^^J 



+ >=>V 



C48o 



R^<2>5 



.0047 T 1C!, ' ,|C - 



©— iJD 



C* 



Q 



to 






C59a R596 
R590 0.(/aF IOOK 
JK i — |f WV— i 



-20V 



|593 MOTOR 

SfcOK COMMON 



,J85-8 



,085-3 



© 



Y* 



jai-2jb 



LM&tA 
9&L02. 



DELAY 
OUT- I 



+20V. 



oaa-» 



+eov 



QI09E 



■HEM 



+ 5V 



^T 



R\as 

IO 081-16 



I°^ F 



+ IBV 



CS2. ^Cb"i\ 



o. 



m 



yjJr 



08l-lS,l<b,t7 



*~r ITT* 



+ 5V 



085-1 



cioei ^k 



.ooi 



p 




MOTOR 



3 



-iev, 



-2.0V 



os>uF^:csa\ 

C<38\ 

0395 . JSI-a THRU 13. 

3 ■ GHD 

fc\£7 

«° o&i-w 

— • — Wv — • ■ ~>2-Y 

O, 
/77 



.1/aF Io.I/lF 



o8a-a 



-aov 



ciosz. 

.OOI 



LQA£>E.O-\ j } &> * 



081-^ 



LOADED - \ 



^ SIO<2>2. *" 



4-«=>V 



JS7-4- 

■ + «=>V 






TAC 
6>I090 



$ ■ G^MD 



iMSTPAJNAtNT: 

4051 


Rvn 

+SV ^ ^Q 


&o/Kft-D : _ 

^ TAPE: DgJVE. &OAFLD 


page: 
G-3 


MOTOR DRIVE 



@ 







.^■0&45-- J36 ° 




+ 5 VOLTS u 



UPHOLE 



<J3>G>l-<b 



LOHOLE B ^_ 



R3 > >R«5 
IK < OV< 





^:q2- 



A/sAr- 1 



<*.7M 



-H5>V, 



SAFE. SW 



03€>l-3 



0"2><b\-£ 



h 



(OPEN FOR 




LOAD ED -I 



G>ND 



03»Cb»-l (TAPE OUT) (TAPE IN) 

0- 



■ 



rh 



Tape Status board 672-0545-01 . 



2286-20 



instrument: 



@ 



4051 SERVICE VOL. 2 



+ 5 VOLTS g 



UP HOLE 



J3>G>l-<© 



LOHOLE B ^_ 



Rl> > >R«=. 
IK < < 1R 




DS1 



-4-V 



R1 
<4.7W\ 




^Q2- 



WH 



<.7M 



03£>O-l 



LAMP OK 



+ l^V, 



03<bl-^> 



SAFE SW 



> — 



S1 



0« (OPEN FOR SAFE CARTRIDGE) 



LOADED -I 



GND 



03><©M (TAPE OUT) (TAPE IK) 

a a o 

S<l \ 



O^Cbl-** 



rh 



J3<bO-8 



LAMP ON RETURK 



2286-20 



INSTPJJMtNT: 



@ 



bo^x>: TApt STATUS 



diaopa**: 



TAPL STATUS 



page.: 

7-1 



+ 12. VOLTS 



0<bO-l 



GND 



U&O-fc 



I/O-O 



JGO-2. 



BREAK-O 



0<bO-^> 



0€>O-^ 



&USY-0 



DSG>0 




R<bO 

<37 



DSfct 



M 




-AAA. ♦ 

R-<2>1 
*1 



DS<©2- 




-AAA/ <> 

R(b£. 
^17 



DS<©5> 




■AVSr- 

R<oi 
SO 



POWER. 



I/O 



BREAK 



BUSY 



D- 



oGi-e 



0<bO-5 



SPeAVC^R 



D- 



OfcM 



SPEAKER 



l_S><bO 



imstiwjnaent: 
^051 



@ 



& °^ D: INDICATOR LIGHTS 



Dl/MbpAM! 



INDICATOR UGHTS 



PMbfc: 

8-1 



KbO- 
I 



)G>0-<© 



j(2>o-e 



)(bO-3 



)feo-<\ 



DS<bO 



-vw- 

R<bO 
-37 



DSfcl 




J WV- 
R<bl 

^7 



DSfcS. 



r?T\ 

R(b£. 
^17 



DS<©^» 



m 




-AW- 

RG"i 
BO 



POWER. 



I/O 



^^^^^^^^^^B 






bBhAK 



BUSY 







indicator Lights board 670-4029-00. 



??&.-;■■ 



0Gi-a 



J<bO-5 



L> 



J<ol-l 



SPEAKER 



LSGO 



B< ** 4>s INDICATOR LIGHTS 



D»/k<bpAN\: 



IND\CATOSL UGHTS 



p*<bE: 

8-1 



@ 



4051 SERVICE VOL. 2 



P5 



D£>5- 
DE>3- 

D&O-I 
R-E START- O 



BI9 



< 



AI8 



bid 



BI7 



< 



Alfc 



BI& 



AI5 



BI5 



hZO 




C-2) 



2286-22 



Firmware Backpack 670-4325-01 . 



Afe 10 - 1 

AB9-1 

A%8-l 

A&7-1 

A&6-I 

AB5-I 

A&4-1 

Afc>3-1 

AB>1-\ 
A^O-» 



C-S) OFA-O 
(-V) OFB-O 

C-^ PIAE.-1 

PS 



r 7<LSOO 






itf 




li 



+ia VOLTS 
+ 5 VOLTS 
GND 

-18 VOLTS 



< 



A85 



T-^LSOO 



< 



B3 



BE« 



Bl 



BS 



BE5 



^0321 
Ec>cF 



utoi 

MCM<2>832 



uaoi 

MCM&S32. 



ea 



21 



ao 



15 



w 



13 



n 



10 



8 



A 9 
A 8 

a 7 

A fc 

A S 

A« 

Ab 
As 
A 1 



CE 

— ■ u. 



OVERFLOW 
ROM 




O© 
Ol 
Oft, 

o 5 

03 

Oe 

VDD 
V&G 
VBb 



CE 

-a 



v&s 



18 



a« 



a3 



Xci03 

IE tJJAP 



XciOc 
'-p.O^/. 



J+ R20t 



G20I 



;aie 



Al3 



I 



80<2> 

-vw- 



£>I9 



instrument: 

oao-ow7-oo 
40SI 



+SV 



Rea\ 



© 



$> 



4051 SERVICE VOL. 2 



PB 



BI9 




C-2) 




Bi7 ^D£>7M 
DB&-1 

feu ^ Dfc>4-\ 




2286-22 




>D*>B-1 
>D£»2-1 

DbO-! 
RESTART -O 



4-5 VOLTS 



M>C-l 



5S0FL-O (r^ 



U9I-A2^ BS(L)-0 

> £>SC£0-o 

092- AZO^ E,e>K(R.)-0 



GND 



(-£} ofb-o 
C-a") le>s-o 

C-^ PlAE-l 

PS 

+ia VOLTS 



+ 5 VOLTS 



+ ia volts 



18 VOLTS ^ 



? -12. VOLTS 



instrument: 

oao-o\^7-oo 
405"! 



+5V 



Ra£\ 

^«TK 
--V\Ar- 



© 



G70-43Z5-0 



BOARD: firmware backpack. 



diagram: 



ROM 



<e> 



PAGE : 

9-1 OL 



P5 



BI9 



09l/9a- 

5,7 ^DE>7-\ 
DB&-\ 




+ 5 VOLTS Z_&1 



-18 VOLTS 



instrument: 

020-OK7-00 

4-051 



+SV 



R^^\ 

-3.7K 



© 



670-- 43Z5-00 



BOARD: FIRMWARE. BACKPACK 



DIAGRAM: 



ROM 



<p> 



PAGE : 

9-1 b 



P5> 



OVERFLOW ROM ADDRESS 
DECODER 

(extended functions') 



KACP2. 



< 



AE3 



550PL -O 

<-0 



EPIAS-O/^l 



PIAE-I 
IRQ-O 
RWOC-I 
AH>15-\ 
A614-1 
A&13-I 
ABia-l 
AE>11-| 
AB>10-I 
AB>9-| 
A£>8-l 
A&7-1 
AE>G-I 
A&5-I 
AE>4-\ 
A&3-1 
ASE-I 
Afe1-i 

A&O-I 



Al9 



AI7 



Ah 



B8 



A7 



;e>7 



< 



A<© 



BW 



< 



Al 



B4 



« 



BS 



4 



Bfc 



4 



BII 



Bia 



BI3 



All 



:AlO 



A9 



A8 




£>ANK SW AND 
EX TERN AL 
PIA ADDRESS DECODED 



U3£l 
7«LSI3B 



U34I 
14 LSI 3 8 



© 



Y0 

Y8 
Y3 

Y4 



^GSA Y5 ^'° 



y&aa yg ^ 

G1 Y7 



15 



13 



J9l/9a- 
. A2\ 



A£l 



» 



> 



MCPZ. 



,, OFA-O(-0 






LBS-o(-0 
09I-A9 



J9a-A9 



"> 



■> 



J9E-AI2 

♦ > 

J9I-AIS 



J9a-AB 



J91-AS 



092.-AIO 



091-AIO 



LBS-O 

LBS-O 

XPCE-O 

XPC2-0 

XPC3-0 

XP03-O 

XPCA-O 

XPC4--0 
* P\AE.-\ C-0 



■> 



-> 



09l/9a- 

A "? \ EP\AS-0 



AG 



PlAE-l 
A '^ \ IRQ-O 



> 



A\9 



» 



RWOC-l 



Al5 ^ AB15-I 



A ^ a&a^-) 



Atfe ^ A&13-1 
A ' 7 y ABiaM 
A)8 \ AB>11-I 
AB>10-I 



B3 



-> 



A5 



B7 



B9 



-> 



BI9 



BEI 



&££ 



B£0 



> 



A&9-I 
AbS-! 
AS>7-I 

AE>5-l 
AB<q-l 
Afc>3-| 



Bl8 ) A&S-I 
^ A&O-I 



BIG 



BW 



instrument: 

OEO-OK7-00 

4051 



4-5V 



r^\ 

«.7K 
— vw- 



© 



G70 -^32.5-0 1 



board: firmware backpack 



diagram: 



ROM PACK SELECT 



page: 

9-aa 



<a 



OVERFLOW Rot* ADORERS 

DECODER 



MOPE 



P5> 



A21 v 



c-0 



LPIAS- 



A 


Yl 


B 


Y2 


C 




G^-A 




G2B 




Gl 





14 



BANYc SW AND 
EXTERN AV- 

P\A ADDRESS DECODER 



A2KMCPE 



„ OFA-O(-0 



13 



74LSI38 



7«LS\"i& 



. OFB-O(-0 
, LBS-0(-\) 




PIAE.-V 

IRQ-O 
RWOC-l 
AB15-\ 
AE> W-\ 
AB>13M 

Ae>ia-\ 

AB/11 -I 

AB.10-1 

AB,9-| 

AB8-I 

A^T-I 

Afc>6-1 

Afc5 

AB-q-l 

A&a-i 

Ab1-» 
A&O-I 



instrument: 

OEO-0147-00 

405 I 



4-5V 



R£^t 

«.7K 



© 



G70 -^32.5-00 



board; firmware backpack 



diagram: 



ROM PACK SELECT 



(a) 



page: 



J93 



TDATA 




FM PS 



' 2286-23 



Communication Interface board 670-4331-00. 




4051 SERVICE VOL. 2 



INSTfUJKAtNT: 

0^-0188-00 

405I 



+5V 



-^AV- 



® 



G.70-' 



@ 






TDATA 



CTS 



DCD 
STXA 

STXC 




> R.DATA 




FM P5 



2286-23 : 




09\£032. 



oa\-o\86-oo 
405i 



+5V 






© 



G70-^33\-00 



&o*p-D: 



COMMUNICATION BACKPACK 






"O RS cJhZ 



page.: 

10-1 



@ 



PS 



4^ 



4 



+ SV 
+5V 

GND ^ 
GND ^ 
GND < 



B3 



Be« 



B1 



B2 



BBS 



-ibv 

-I2.V 4 



-Aia 



AI3 



PS 



DB7-I ^ 



BI9 



DBG-I ^ 



At8 



DBS-\ 



4 



BIS 



DB4-\ / br7 



4- 



dbb-» 



4 



0&-£r\ 4 



Alt 



Blfe 



DBl-\ ^ 



A\S 



DB>0-\ (&"=» 
RLSTART-O ^ 5 -° 



MGP2. 



,Aa3 



EPlAS-O ^ 



A24 



P\AE-» 
IRQ-O 



4 



AI9 



• A\7 



RWOC-I ^ 



A«b 



Kpca-o, 

XPCB-O 
XPG4-0 



RBG-\ ^ 



AW 



bsxco-o 

BS0->O 



instrument: 

oa\-Ol88-oo 
4051 



+ -LGUI 

a: 






"S 



L 



5V 
30 



CWO 



i= 



RIIO 
-WV- 



iVB-IOS 
6.1V 



GNDS 



1 



a 



i 






+SV 



+t£V 



IJ94 

2. 



es, 



24, 



bb, 



as, 



DBTM 



DBGM 



091/J3B 
& t7 v , DBl-\ 



DE>*b-l 



B15v DB>6>-\ 



Bftv DB , =>-\ 



DesA-\ 



•> 



B\\ 



DE>"3>-1 



^ 



DB>4-1 



fe ^\ DB^-\ 



DB^-I 



B\0 



DB>l-\ 



> 



B8 



D^O-\ 



» 



DE>B-» 



D6.1-1 



fe fe \ DBO-l 



L 



J 



"> 



AW ^ RESTART- O 



AB\ ^ MCPB 



AT 



_L_^ EP\ AS-O 

G 

AW 



AG ^ piA^'\ 



A\9 



a\b 



Aa 



^ IRQ-O 



R.WOG-1 

XPGB-O 

XPGB-O 



■> 



■> 



Ato 



> 



XPG4-0 



«*_ RBG~\ 



jqt-A^O. g.c^X-O 



J^l-A^L. &S-Q 



CB4B 
■•O^ucF 



PS 



AB\E>- 

AB14- 

AB1B- 

AB\B- 

ABM- 

A^\0- 

AM- 

AB&- 

AB-7-\ 

AB>G- 

AB£>- 

AB4,- 

ABB- 

A&2- 

AB\- 

A&O- 



B8 



A7 



4 



B7 



4 



AG 



B\4 



A\ 



B4 



BS 



BG 



&\\ 



B\B 



B\3 



AW 



A\0 



A9 



A8 



BSGOM-0_^. 

B6>0PL-O _^, 

LBS-O _^, 

BSX(R)-0 _*> 

BS(R)-0 _*. 



CB 



.OS^uF 



r^t 



CI\B 
GtBB 



T 



I094" 1 
4„ 



IO 



EO, 



ee>. 



w 



ia 



e7 



3^ 



33, 



3*., 



31 



2.1 



S9, 



as. 



AB>\^-\ 



AB>\\-\ 



AB^-l 



AB&-I 



AB7-1 



AE>G>-\ 



AB<B~t 



AB><*-1 



AB^.-\ 



ABt-l 



B^ k +IEV 



BS 



^ 



Aa 



B2. 



> 



-nav 

+ 5V 
+5V 



A\ 



B\ 



_^ GND 
_^ GMD 



AB_^ -\2.V 



A^ y -^V 



■> 



091/J9£ 



A ^'^ AIS^ A ^,s-^ 



A ^^"^ A ft) AB^-1 



A ^ 3 ^ A\fe > AB>\B-l 



A\7 N AB\"2.-» 



A^6v AB\t-\ 



AB\0-\ R ^ AB 4 _ , 
tt5 \ AB>\0-1 



A<b \ A12>9-\ 



B7 \ AB8-1 



■> 



&5_^ AV?-\ 



& ^ 9 \ AB>G-1 



B2Lt \ ABS-I 



■> 



& ^\ A%<^-\ 



^ 



^L^AbVI 



B ^ 8 \ A&Z.-\ 



BIG 



^ AB»\-l 



A ^°^ W) A^O-I 



I 



BSCOM-O 

&50FL-0 

A9 



LBS-O 



J92- A^o 






O^^-A^a^ bs-o 



> 



G70-^BB\-00 



Boap-D: 



COMMUN\CAT\ON BACKPACK 



DIAepA^* POWER 4 R.OW PAGK 
DtSTR\BOT\OM 



@ 



pa^e.: 




;2S#6~25- 



Communication ROM board 670-4332-01. 



A&10- 
A&9-! 
A&&-I 
ABT-I 
A$6-l 
Afcb-1 
AE><*-I 

Afea- 

AE1-I 
AE>0 



J95- 



Ul 
MGM<b8"5ȣ. 



on 



uioi 
M cm £>&"*>£ 



li 


aa 


_IS 


ai 


II 


ao 


_a? 


IS 


m** 


w 


BB 


13 


■^ 


w 


m i\ 


\o 


£\ 


9 


.* 


8 



BSOFL-O 




BSCOM-0 



COMMUNE CAT1C 
ROM SELECT 



IMSTIUJMtNTS 

oai-oi86-oo 
4051 



& 



4051 SERVICE VOL. 2 



2-'W ?b 



A&10- 
A&3-I 

AB7-I 
A3 <o -\ 
AB>S-l 
A^-! 
AB^-I 

A&a-i 

AB1-I 
A6 0-1 



B50FL-0 



BSOOM-O 



AB>15-| 
A&1B-I 

AE>ia-i 

A&11-I 



J95- 

_I4 



095- 



095- 



Iftt. 
««4 



IO 



.2.0 



Ul 



UH 
MGM<©e>^ 



UIOI 



MCM(b8i> 



uiai 



LM31 





ea 


B 


at 




ao 


■ 
■ S7 


is 




w 


_B* 


is 




n 


■ 3 * 


\o 




^ 


»5 


8 



^C & ^A Y a 



.e<b 




COMMUNICATION 
ROM SELECT 



+5V 



GND 



" 1 1 1 % 

:£:cioi ^cui ±:ciei tzzvzz. ^c^\ 

.05/xF .O^uF .O^uF UOS^F a^yuf 



c\"b\ :£ 
i.q^F 



-^V .*. 



I8, 



-HEV 



+ 5V 
+ 5V 



I7 



_g GND 
ife » GND 



15 



BO. 



GND 



|MSTR4JKAtNT: 

C£l-OI66-00 
4051 


G70-^B^2.-00 


^*^ D * COMMUNICATION ROM BOARD 


11-1 


Di^opjkf*: 



@ 



Section 5—4051 



REPLACEABLE 

^L^^ | p-gji^^L rAn I o 

PARTS ORDERING INFORMATION 

Re n Jacement n arts are available from or through "our Socai T6ktronlx !nc FisM '"'ff i**6 
or representative. 

Changes to Tektronix instruments are sometimes made to accommodate improved 
components as they become available, and to give you the benefit of the latest circuit 
improvements developed in our engineering department. It is therefore important, when 
ordering parts, to include the following information in your order: Part number, instrument 
type or number, serial number, and modification number if applicable. 

If a part you have ordered has been replaced with a new or improved part, your local 
Tektronix, Inc. Field Office or representative will contact you concerning any change in part 
number. 

Change information, if any, is located at the rear of this manual. 

SPECIAL NOTES AND SYMBOLS 

X000 Part first added at this serial number 

nnY Part romnuoH aftor thic carial nnmhar 



ITEM NAME 

In the Parts List, an Item Name is separated from the description by a colon (:). 
Because of space limitations, an Item Name may sometimes appear as incomplete. For 
further Item Name identification, the U.S. Federal Cataloging Handbook H6-1 can be 
utilized where possible. 



ABBREVIATIONS 



ACTR 


ACTUATOR 


PLSTC 


PLASTIC 


ASSY 


ASSEMBLY 


QTZ 


QUARTZ 


CAP 


CAPACITOR 


RECP 


RECEPTACLE 


CER 


CERAMIC 


RES 


RESISTOR 


CKT 


CIRCUIT 


RF 


RADIO FREQUENCY 


COMP 


COMPOSITION 


SEL 


SELECTED 


CONN 


CONNECTOR 


SEMICOND 


SEMICONDUCTOR 


ELCTLT 


ELECTROLYTIC 


SENS 


SENSITIVE 


ELEC 


ELECTRICAL 


VAR 


VARIABLE 


INCAND 


INCANDESCENT 


WW 


WIREWOUND 


LED 


LIGHT EMITTING DIODE 


XFMR 


TRANSFORMER 


NONWIR 


NON WIREWOUND 


XTAL 


CRYSTAL 



4051 SERVICE VOL. 2 



5-1 



REPLACEABLE ELECTRICAL PARTS-4051 



CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER 



Mfr. Code 



Manufacturer 



Address 



City, State, Zip 



OOOOL MATSUHITA ELECTRIC 
01121 ALLEN-BRADLEY COMPANY 

01295 TEXAS INSTRUMENTS, INC., SEMICONDUCTOR 
GROUP 

01963 CHERRY ELECTRICAL PRODUCTS CORPORATION 
02735 RCA CORPORATION, SOLID STATE DIVISION 
02777 HOPKINS ENGINEERING COMPANY 
03508 GENERAL ELECTRIC COMPANY, SEMI-CONDUCTOR 

PRODUCTS DEPARTMENT 
04222 AVX CERAMICS, DIVISION OF AVX CORP. 
04713 MOTOROLA, INC., SEMICONDUCTOR PROD. DIV. 
05574 VIKING INDUSTRIES, INC. 
07109 OAKTRON INDUSTRIES, INC. 
07263 FAIRCHILD SEMICONDUCTOR, A DIV. OF 

FAIRCHILD CAMERA AND INSTRUMENT CORP. 
07910 TELEDYNE SEMICONDUCTOR 
08806 GENERAL ELECTRIC CO., MINIATURE 

LAMP PRODUCTS DEPARTMENT 
14099 SEMTECH CORP. 
14752 ELECTRO CUBE INC. 
15818 TELEDYNE SEMICONDUCTOR 
18324 SIGNETICS CORP. 

19396 IILINOIS TOOL WORKS, INC. PAKTRON DIV. 
27014 NATIONAL SEMICONDUCTOR CORP. 
32293 INTERSIL, INC. 

32997 BOURNS, INC., TRIMPOT PRODUCTS DIV. 
34371 HARRIS SEMICONDUCTOR, DIV. OF 

HARRIS CORPORATION 
50778 PORTESCAP, US 
54492 CINCH COMPANY 
56289 SPRAGUE ELECTRIC CO. 
71400 BUSSMAN MFG. , DIVISION OF MCGRAW- 

EDISON CO. 
71744 CHICAGO MINIATURE LAMP WORKS 
72136 ELECTRO MOTIVE CORPORATION, SUB OF 

INTERNATIONAL ELECTRONICS CORPORATION 
72982 ERIE TECHNOLOGICAL PRODUCTS, INC. 
73138 BECKMAN INSTRUMENTS, INC., HELIPOT DIV. 
75042 TRW ELECTRONIC COMPONENTS, IRC FIXED 

RESISTORS, PHILADELPHIA DIVISION 
76493 BELL INDUSTRIES, INC., 

MILLER, J. W. , DIV. 
80009 TEKTRONIX, INC. 
81483 INTERNATIONAL RECTIFIER CORP. 
83003 VARO, INC. 

86684 RCA CORP., ELECTRONIC COMPONENTS DIV. 
87034 ILLUMINATED PRODUCTS INC. , A SUB OF 

OAK INDUSTRIES, INC. 
90201 MALLORY CAPACITOR CO. , DIV. OF 

P. R. MALLORY AND CO., INC. 

91637 DALE ELECTRONICS, INC. 
98939 FLUID REGULATORS CORP. 



200 PARK AVENUE, 54TH FLOOR 
1201 2ND STREET SOUTH 

P O BOX 5012, 13500 N CENTRAL 

EXPRESSWAY 

3600 SUNSET AVENUE 

ROUTE 202 

12900 FOOTHILL BLVD. 

ELECTRONICS PARK 

P O BOX 867, 19TH AVE. SOUTH 

5005 E MCDOWELL RD,PO BOX 20923 

21001 NORDHOFF STREET 

704 30TH STREET 

464 ELLIS STREET 
12515 CHADRON AVE. 

NELA PARK 

652 MITCHELL RD. 

1710 S. DEL MAR AVE. 

1300 TERRA BELLA AVE. 

811 E. ARQUES 

900 FOLLIN LANE, SE 

2900 SEMICONDUCTOR DR. 

10900 N. TANTAU AVE. 

1200 COLUMBIA AVE. 

P. O. BOX 883 

730 FIFTH AVENUE 

6126 MONTECITO BLVD. ,PO BOX 167 



2536 W. UNIVERSITY ST. 
4433 RAVENSWOOD AVE. 

SOUTH PARK AND JOHN STREETS 
644 W. 12TH ST. 
2500 HARBOR BLVD. 

401 N. BROAD ST. 

19070 REYES AVE. , P O BOX 5825 

P BOX 500 

9220 SUNSET BLVD. 

P BOX 411, 2203 WALNUT STREET 

415 S. 5TH STREET 

2620 SUSAN ST, PO BOX 11930 

3029 E WASHINGTON STREET 
P O BOX 372 
P. 0. BOX 609 
313 GILLETTE ST. 



NEW YORK, NY 10017 
MILWAUKEE, WI 53204 



DALLAS, TX 75222 
WAUKEGAN, IL 60085 
SOMERVILLE, NY 08876 
SAN FERNANDO, CA 91342 

SYRACUSE, NY 13201 
MURTLE BEACH, SC 29577 
PHOENIX, AZ 85036 
CHATSWORTH, CA 91311 
MONROE, WI 53566 

MOUNTAIN VIEW, CA 94042 
HAWTHORNE, CA 90250 

CLEVELAND, OH 44112 
NEWBURY PARK, CA 91320 
SAN GABRIEL, CA 91776 
MOUNTAIN VIEW, CA 94043 
SUNNYVALE, CA 94086 
VIENNA, VA 22180 
SANTA CLARA, CA 95051 
CUPERTINO, CA 95014 
RIVERSIDE, CA 92507 

MELBOURNE, FL 32901 
NEW YORK, NEW YORK 10019 
SANTA ROSA, CA 95402 
NORTH ADAMS, MA 01247 

ST. LOUIS, MO 63107 
CHICAGO, IL 60640 

WILLIMANTIC, CT 06226 
ERIE, PA 16512 
FULLERTON, CA 92634 

PHILADELPHIA, PA 19108 

COMPTON, CA 90224 
BEAVERTON, OR 97077 
LOS ANGELES, CA 90069 
GARLAND, TX 75040 
HARRISON, NJ 07029 

SANTA ANA, CA 92711 



INDIANAPOLIS, IN 46206 
COLUMBUS, NE 68601 
PAINSVILLE, OH 44060 



5-2 



4051 SERVICE VOL. 2 



Tektronix Serial/Mode! No. 
CktNo. Part No. Eff Dscont 



REPLACEABLE ELECTRICAL PARTS— 4051 



Name & Description 



Mfr 
Code 



Mtr Part Number 



CIRCUIT BOARD ASSEMBLIES 



Al 








A2 


670-4008-00 


B010151 


B030539 


A2 


670-4008-01 


B030540 


B061590 


A2 


670-4008-02 


B061591 


B069999 


A2 


670-4008-03 


B070000 


B071882 


A2 


670-4008-04 


B071883 




A3 


670-4004-01 






A3 


670-4004-02 






A3 


670-4004-03 






A4 


672-0546-03 


B010151 


B051378 


A4 


672-0546-04 


B051379 


B082622 


A4 1 


672-0546-05 


B082623 


B082819 


A4 


672-0546-06 


B082820 




A5 


119-0707-01 






A6 


670-4003-00 






A7 


672-0545-00 


B010151 


B041005 




672-0545-01 


B041006 




A8 


670-4029-00 







CKT BOARD ASSY: POWER SUPPLY 
CKT BOARD ASSYrC.P.U. 
CKT BOARD ASSY:C.P.U. 
CKT BOARD ASSY:C.P.U. 
CKT BOARD ASSYrC.P.U. 

CKT BOARD ASSY:C.P.U. 
CKT BOARD ASSY:16K MEMORY (OPT 20) 
CKT BOARD ASSY:24K MEMORY (OPT 21) 
CKT BOARD ASSY:32K MEMORY (OPT 22) 
CKT BOARD ASSY: DISPLAY 

CKT BOARD ASSY: DISPLAY 
CKT BOARD ASSY: DISPLAY 
CKT BOARD ASSY: DISPLAY 
KEYBOARD, CMPTR:W/KEY CAPS 
CKT BOARD ASSY: TAPE DRIVE 

CKT BOARD ASSY: STATUS W/MICRO SWITCH 

CKT BOARD ASSY: STATUS W/MICRO SWITCH 

CKT BOARD ASSY : INDICATOR LIGHT 



80009 670-4008-00 

80009 670-4008-01 

80009 670-4008-02 

80009 670-4008-03 

80009 670-4008-04 

80009 670-4004-01 

80009 670-4004-02 

80009 670-4004-03 

80009 672-0546-03 

80009 672-0546-04 

80009 672-0546-05 

80009 672-0546-06 

80009 119-0707-01 

80009 670-4003-00 

80009 672-0545-00 

80009 672-0545-01 

80009 670-4029-00 



Al CKT BOARD ASSY: POWER SUPPLY 



C101 


290-0549-00 


C121 


290-0506—00 


C251 


290-0526-00 


C301 


290-0506-00 


C341 


281-0525-00 


C411 


290-0746-00 


C421 


290-0508-00 


C442 


281-0504-00 


C511 


290-0746-00 


C512 


290-0746-00 


C551 


290-0771-00 


C552 


283-0028-00 XB010312 


CR21 


152-0200-00 


CR31 


152-0200-00 


CR32 


152-0406-00 


CR331 


152-0066-00 


CR332 


152-0066-00 


CR401 


152-0066-00 


CR411 


152-0066-00 


CR501 


152-0198-02 



CAP. ,FXD,ELCTLT:150UF,400VDC/250VDC 



, ocnnrTc' xinn = ini ici 



CAP. ,FXD,ELCTLT:6.8UF,20%,6V 

CAP. ,FXD,ELCTLT:9600UF, +100-10%, 25V 

CAP. ,FXD,CER DI:470PF,+/-94PF,500V 

CAP. ,FXD,ELCTLT:47UF, +50-10%, 16V 
CAP. ,FXD,ELCTLT: 18, 000UF, +100-10%, 15V 
CAP.,FXD,CER DI:10PF,+/-1PF,500V 
CAP. ,FXD,ELCTLT:47UF, +50-10%, 16V 
CAP. ,FXD,ELCTLT:47UF, +50-10%, 16V 

CAP. ,FXD,ELCTLT:220UF, +50-10%, 10VDC 
CAP.,FXD,CER DI:0.0022UF,20%,50V 

SEMICOND DEVICE : S ILICON , 400V , 1500MA 

SEMICOND DEVICE:SILICON,400V,1500MA 
SEMICOND DEVICE :SILICON, 200V, 3A 
SEMICOND DEVICE rSILICON, 400V, 750MA 
SEMICOND DEVICE rSILICON, 400V, 7 SOMA 

SEMICOND DEVICE :SILICON,400V,750MA 
SEMICOND DEVICE rSILICON, 400V, 750MA 
SEMICOND DEVICE:SILICON,200V,3A 



56289 68D20193 

55289 68D10471 

90201 TDC685M006EL 

56289 68D10471 

04222 7001-1364 



56289 


502D226 


56289 


68D10444 


72982 


301-055C0G0100F 


56289 


502D226 


56289 


502D226 


0000L 


ECE-A10V220L 


56289 


19C606 



80009 152-0200-00 

80009 152-0200-00 

80009 152-0406-00 

80009 152-0066-00 

80009 152-0066-00 

80009 152-0066-00 

80009 152-0066-00 

14099 3SM2 



Replaces 672-0546-04. 



4051 SERVICE VOL. 2 



5-3 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



F331 


159-0021-00 B010151 B030783 


F331 


159-0015-00 B030784 


F332 


159-0021-00 B010151 B030784 


F332 


159-0015-00 B030784 


F1002 


159-0034-00 


FI002 


159-0018-00 


FL1000 


119-0389-00 


Q251 


151-0521-00 


Q252 


151-0405-00 


Q451 


151-0476-00 


Q452 


151-0476-00 


Q453 


151-0301-00 


Q454 


151-0301-00 


Q551 


151-0302-00 


Q552 


151-0425-00 


Rll 


305-0124-00 


R51 


311-1236-00 


R52 


315-0152-00 


R101 


303-0104-00 


R221 


307-0113-00 


R231 


315-0200-00 


R241 


315-0511-00 


R251 


315-0301-00 


R252 


303-0683-00 


R331 


315-0223-00 


R341 


308-0677-00 


R342 


315-0332-00 


R351 


321-0182-00 


R352 


321-0210-00 


R353 


308-0677-00 


R431 


321-0300-00 


R443 


321-0268-00 


R444 


321-0266-00 


R452 


315-0151-00 


R453 


315-0752-00 


R454 


315-0471-00 


R455 


321-0216-00 


R456 


321-0309-00 


R531 


315-0821-00 


R542 


315-0511-00 


R543 


315-0112-00 


R550 


321-0197-00 


R551 


308-0643-00 


R553 


321-0033-00 


R554 


315-0681-00 


T1001 


120-0998-00 


U341 


156-0071-00 


U352 


156-0285-00 


U442 


156-0067-00 


U541 


156-0158-00 



FUSE , CARTRIDGE : 3 AG , 2A , 250V , FAST-BLOW 
FUSE , CARTRIDGE : 3 AG , 3A , 2 50V , FAST-BLOW 
FUSE , CARTRIDGE : 3AG , 2A , 250V , FAST-BLOW 
FUSE , CARTRIDGE : 3 AG , 3 A , 2 5 OV , FAST-BLOW 
FUSE, CARTRIDGE :3AG,1.6A, 125V, SLOW-BLOW 

FUSE , CARTRIDGE s SAG , . 8A , 250V , SLOW-BLOW 

FILTER, RAD INTE:115/230V,3A 

TRANSISTOR:200V,8 . OA 

TRANSISTOR:SILICON,NPN,SEL FROM MJE800 
TRANS ISTOR : S ILICON , NPN 
TRANSIST0R:SILIC0N,NPN 
TRANS ISTOR : S ILICON , PNP 

TRANS ISTOR : S ILICON , PNP 
TRANS ISTOR : SILICON , NPN 
TRANS ISTOR : S ILICON , NPN 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 



FXD,CMPSN:120K 0HM,5%,2W 
VAR,NONWIR:250 OHM, 10% ,0. 50W 
FXD,CMPSN:1.5K OHM,5%,0.25W 
FXD,CMPSN:100K 0HM,5%,1W 
FXD,CMPSN:5.1 OHM,5%,0.25W 

FXD,CMPSN:20 OHM,5%,0.25W 
FXD,CMPSN:510 OHM,5%,0.25W 
FXD,CMPSN:300 OHM,5%,0.25W 
FXD,CMPSN:68K 0HM,5%,1W 
FXD,CMPSN:22K OHM,5%,0.25W 

FXD,WW:1 0HM,5%,2W 
FXD,CMPSN:3.3K OHM,5%,0.25W 
FXD,FILM:768 OHM,1%,0. 125W 
FXD,FILM:1.5K OHM, 1% ,0. 125W 
FXD,WW:1 0HM,5%,2W 

FXD,FILM:13K OHM,1%,0. 125W 
FXD,FILM:6.04K OHM,1%,0. 125W 
FXD,FILM:5.76K OHM,1%,0. 125W 
FXD,CMPSN:150 OHM,5%,0.25W 
FXD,CMPSN:7.5K OHM,5%,0.25W 

FXD,CMPSN:470 OHM,5%,0.25W 
FXD,FILM:1.74K OHM, 1%,0. 125W 
FXD,FILM:16.2K OHM, 1%,0. 125W 
FXD,CMPSN:820 OHM,5%,0.25W 
FXD,CMPSN:510 OHM,5%,0.25W 

FXD,CMPSN:1.1K OHM,5%,0.25W 
FXD,FILM:1.1K OHM,l% ,0. 125W 
FXD,WW:0.1 0HM,3%,3W 
FXD,FILM:21.5 OHM, 1% ,0. 125W 
FXD,CMPSN:680 OHM,5%,0.25W 



XFMR,PWR,SDN SU: 

MICROCIRCUIT , LI : VOLTAGE REGULATOR 
MICROCIRCUIT , LI : VOLTAGE REGULATOR , 1 2V , 1 A 
MICROCIRCUIT , LI : OPERATIONAL AMPLIFIER 
MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 



71400 
71400 
71400 
71400 
71400 



AGC 2 
AGC 3 
AGC 2 
AGC 3 

MDL 1 



6/10 



71400 MDL 8/10 

02777 F11935-3 

03508 C122B 

80009 151-0405-00 

01295 TIP31C 

01295 TIP31C 

04713 2N2907A 

04713 2N2907A 

04713 2N2222A 

04713 MJE1101 

01121 HB1245 

73138 72X-22-0-251K 

01121 CB1525 

01121 GB1045 

01121 CB51G5 



01121 


CB2005 


01121 


CB5115 


01121 


CB3015 


01121 


GB6835 


01121 


CB2235 


75042 


BWH-1R000J 


01121 


CB3325 


91637 


MFF1816G768R0F 


91637 


MFF1816G15000F 


75042 


BWH-1R000J 


91637 


MFF1816G13001F 


91637 


MFF1816G60400F 


91637 


MFF1816G57600F 


01121 


CB1515 


01121 


CB7525 


01121 


CB4715 


91637 


MFF1816G17400F 


91637 


MFF1816G16201F 


01121 


CB8215 


01121 


CB5115 


01121 


CB1125 


91637 


MFF1816G11000F 


91637 


RS2B-ER1000H 


91637 


MFF1816G21R50F 


01121 


CB6815 


80009 


120-0998-00 



07263 723DC 

80009 156-0285-00 

80009 156-0067-00 

80009 156-0158-00 



5-4 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix 
Ikt No. Part No. 



Serial/Model No. 
Eft Dscont 



Name & Descriptor 



Mfr 
Code 



Mfr Part Number 



VR251 
VR252 
VR531 



152-0175-00 
152-0283-00 
152-0395-00 



SEMICOND DEVICE :ZENER,0.4W, 5.6V, 5% 
SEMICOND DEVICE:ZENER,0.4W,43V,5% 
SEMICOND DEVICE:ZENER,0.4W,4.3V,5% 



80009 152-0175-00 
04713 1N976B 
04713 1N749A 



A2 CKT BOARD ASSY:C.P.U. 



C12 


283-0005-00 




CAP 




ioi_nm r\—f\r\ 




CAP 


C54 


283-0114-00 




CAP 


C56 


283-0114-00 




CAP 


C71 


283-0010-00 




CAP 


C81 


283-0010-00 




CAP 


C91 


283-0010-00 




CAP 


C101 


283-0010-00 


XB020880 


CAP 


C105 


283-0010-00 


XB020880 


CAP 


cm 


283-0010-00 




CAP 


C115 


283-0010-00 




CAP 


C121 


283-0010-00 


XB020880 


CAP 


C125 


283-0010-00 


XB020880 


CAP 


C135 


283-0010-00 


XB020880 


CAP 


C141 


283-0010-00 




CAP 


C153 


283-0010-00 




CAP 


C181 


283-0010-00 




CAP 


C183 


283-0010-00 




CAP 


C191 


283-0010-00 




CAP 


C193 


283-0010-00 




CAP 


C205 


283-0010-00 




CAP 


C206 


283-0010-00 


XB020880 


CAP 


C211 


283-0010-00 


XB020880 


CAP 


C215 


283-0010-00 




CAP 


C217 


283-0010-00 




CAP 


C218 


283-0010-00 




CAP 


C225 


283-0010-00 




CAP 


C231 


283-0010-00 




CAP 


C235 


283-0010-00 


XB020880 


CAP 


C261 


283-0010-00 




CAP 


C265 


283-0010-00 


XB020880 


CAP 


C285 


283-0010-00 




CAP 


C291 


283-0010-00 




CAP 


C311 


283-0203-00 




CAP 


C312 


283-0178-00 




CAP 


C313 


283-0010-00 




CAP 


C314 


283-0010-00 




CAP 


C321 


283-0178-00 




CAP 


C322 


283-0010-00 




CAP 


C331 


283-0010-00 




CAP 


C335 


283-0010-00 


XB020880 


CAP 


C337 


283-0010-00 




CAP 


C361 


283-0010-00 




CAP 


C381 


283-0010-00 




CAP 


C383 


283-0010-00 




CAP 



FXD,CER DI:0.01UF, +100-0%, 250V 
FXD CER DI:Q.Q5UF +100-20%, 50V 



FXD,CER DI:0.0015UF,5%,200V 
FXD, CER DI:0.0015UF,5%,200V 
FXD, CER DI:0.05UF, +100-20%, 50V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.47UF,20%,50V 
FXD, CER DI:0.1UF, +80-20%, 100V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.1UF, +80-20%, 100V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 

FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 
FXD, CER DI:0.05UF, +100-20%, 50V 



72982 8131N300Z5U0103P 

56289 273C20 

72982 805-509B152J 

72982 805-509B152J 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

72982 8131N075 E474M 

72982 8131N145 E 104Z 

56289 273C20 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 



4051 SERVICE VOL. 2 



5-5 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
Ckt No. Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



C385 


283-0010-00 


CAP., 


C411 


283-0178-00 


CAP., 


C412 


283-0010-00 


CAP., 


C415 


283-0178-00 


CAP., 


C416 


283-0010-00 


CAP., 


C421 


283-0178-00 


CAP., 


C422 


283-0010-00 


CAP., 


C425 


283-0178-00 


CAP., 


C426 


283-0010-00 


CAP., 


C435 


283-0010-00 


CAP., 


C461 


283-0010-00 XB020880 


CAP., 


C481 


283-0010-00 


CAP. , 


C483 


283-0010-00 


CAP., 


C485 


283-0010-00 


CAP., 


C487 


283-0010-00 


CAP., 


C511 


283-0178-00 


CAP., 


C512 


283-0010-00 


CAP., 


C515 


283-0178-00 


CAP., 


C516 


283-0010-00 


CAP., 


C517 


283-0178-00 


CAP., 


C518 


283-0010-00 


CAP., 


C521 


283-0178-00 


CAP., 


C522 


283-0010-00 


CAP., 


C525 


283-0178-00 


CAP. , 


C526 


283-0010-00 


CAP., 


C527 


283-0178-00 


CAP., 


C528 


283-0010-00 


CAP., 


C531 


283-0010-00 XB020880 


CAP., 


C537 


283-0010-00 XB020880 


CAP., 


C561 


283-0010-00 XB020880 


CAP. , 


C565 


283-0010-00 


CAP. , 


C581 


283-0010-00 


CAP., 


C583 


283-0010-00 


CAP. , 


C585 


283-0010-00 


CAP., 


C601 


290-0517-00 


CAP., 


C605 


290-0746-00 


CAP., 


C611 


283-0178-00 


CAP., 


C612 


283-0010-00 


CAP., 


C615 


283-0178-00 


CAP., 


C616 


283-0010-00 


CAP., 


C621 


283-0178-00 


CAP., 


C622 


283-0010-00 


CAP., 


C625 


283-0178-00 


CAP., 


C626 


283-0010-00 


CAP., 


C627 


283-0010-00 


CAP., 


C631 


283-0010-00 


CAP., 


C671 


285-1050-00 


CAP., 


C672 


290-0531-00 


CAP. , 


C683 


283-0010-00 


CAP., 


C684 


283-0080-00 


CAP. , 


C685 


283-0010-00 


CAP., 


C692 


281-0662-00 


CAP., 


C693 


290-0517-00 


CAP. , 



FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF, +80-20%, TOOV 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF, +80-20%, 100V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.lUF,+80-20%,100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,ELCTLT:6.8UF,20%,35V 

FXD,ELCTLT:47UF, +50-10%, 16V 
FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,+80-20%,100V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DIrO.lUF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF, +80-20%, 100V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD ,PLSTC : . 1UF , 1% , 200V 
FXD,ELCTLT:100UF,20%,10V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.022UF, +80-20%, 25V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:10PF,+/-0.5PF,500V 
FXD , ELCTLT : 6 . 8UF , 20% , 35V 



56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

56289 196D685X0035KA1 

56289 502D226 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

72982 8131N145 E 104Z 

56289 273C20 

56289 273C20 

56289 273C20 

14752 230B1C104F 

90201 TDC107M010WLC 

56289 273C20 

56289 19C611 

56289 273C20 

72982 301-000H3M0100D 

56289 196D685X0035KA1 



5-6 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS-4051 



Tektronix Serial/Model No. 
Ckt No. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



C695 


283-0119-00 


C701 


283-0010-00 


C705 


283-0010-00 


C713 


281-0546-00 


C751 


283-0010-00 


C765 


283-0010-00 


C791 


283-0010-00 


C793 


283-0010-00 


C811 


285-1067-00 


C815 


283—0010—00 


C816 


283-0083-00 


C823 


283-0010-00 


C853 


290-0534-00 


C854 


290-0534-00 


C871 


290-0534-00 


C872 


290-0534-00 


C884 


290-0718-00 


C895 


283-0065-00 


C896 


283-0065-00 


C931 


290-0771-00 


C945 


290-0534-00 


C951 


285-1142-00 


C954 


290-0746-00 


C956 


290-0534-00 


C961 


281-0525-00 


C962 


285-1142-00 


C963 


281-0525-00 


C964 


285-1142-00 


C965 


290-0746-00 


C967 


290-0746-00 


C971 


285-1142-00 


C998 


283-0010-00 


C999 


283-0010-00 


CR850 


152-0141-02 


CR851 


152-0141-02 


CR852 


152-0141-02 


CR853 


152-0141-02 


CR854 


152-0141-02 


CR855 


152-0141-02 


CR856 


152-0141-02 


CR857 


152-0141-02 


CR858 


156-0106-00 


CR859 


156-0106-00 


CR861 


152-0141-02 


CR862 


152-0141-02 


CR869 


152-0141-02 


CR870 


152-0141-02 


CR871 


152-0141-02 


CR872 


152-0141-02 


CR873 


152-0141-02 


CR874 


152-0141-02 


CR875 


152-0141-02 


CR876 


152-0141-02 



CAP.,FXD,CER DI:2200PF,5%,200V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:330PF,10%,500V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 

CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,PLSTC:0.5UF,1%,200V 
CAP FXD rv ER DI: n 05UF + 1 00— 20% 50V 

CAP. ,FXD,CER DI:0.0047UF,20%,500V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,ELCTLT:1UF,20%,35V 
CAP. / FXD,ELCTLT:1UF,20%,35V 
CAP. ,FXD,ELCTLT:1UF,20%,35V 

CAP. ,FXD,ELCTLT:1UF,20%,35V 
CAP. ,FXD,ELCTLT:22UF,20%,35V 
CAP.,FXD,CER DI:0.001UF,5%,100V 
CAP. ,FXD,CER DI:0.001UF,5%,100V 
CAP. , FXD, ELCTLT:220UF, +50-10%, 10VDC 

CAP. ,FXD,ELCTLT:1UF,20%,35V 
CAP. ,FXD,PLSTC:0.01UF,1%,200VDC 
CAP. , FXD, ELCTLT:47UF, +50-10%, 16V 
CAP. ,FXD,ELCTLT:1UF,20%,35V 
CAP.,FXD,CER DI:470PF,+/-94PF,500V 

CAP . , FXD , PLSTC : . 01UF , 1% , 200VDC 
CAP.,FXD,CER DI:470PF,+/-94PF,500V 
CAP. ,FXD,PLSTC:0.01UF,1%,200VDC 
CAP. , FXD, ELCTLT:47UF, +50-10%, 16V 
CAP. ,FXD,ELCTLT:47UF,+50-10%,16V 

CAP. , FXD, PLSTC :0.01UF,1%,200VDC 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



:SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
: SILICON, 30V, 150MA 
: SILICON, 30V, 150MA 
: SILICON, 30V, 150MA 



SEMICOND DEVICE: SILICON, 30V, 150MA 
SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE : SILICON, 30V, 150MA 
MICROCIRCUIT,LI : MONOLITHIC, 6-DIODE ARRAY 
MICROCIRCUIT , LI :MONOLITHIC , 6-DIODE ARRAY 



72982 855-535B222J 

56289 273C20 

56289 273C20 

04222 7001-1380 

56289 273C20 

56289 273C20 

56289 273C20 

56289 273C20 

14752 230B1C504F 
56 






72982 811-565C472J 

56289 273C20 

56289 196D105X0035HA1 

56289 196D105X0035HA1 

56289 196D105X0035HA1 

56289 196D105X0035HA1 

56289 196D226X0035PE3 

72982 805-505B102J 

72982 805-505B102J 

0000L ECE-A10V220L 

56289 196D105X0035HA1 

19396 PP580C103F 

56289 502D226 

56289 196D105X0035HA1 

04222 7001-1364 

19396 PP580C103F 

04222 7001-1364 

19396 PP580C103F 

56289 502D226 

56289 502D226 



SEMICOND DEVICE: 
SEMICOND DEVICE: 
SEMICOND DEVICE: 
SEMICOND DEVICE: 
SEMICOND DEVICE: 

SEMICOND DEVICE: 
SEMICOND DEVICE: 
SEMICOND DEVICE: 
SEMICOND DEVICE; 
SEMICOND DEVICE: 



: SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
:SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 

[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
:SILICON, 30V, 150MA 
SILICON, 30V, 150MA 
SILICON, 30V, 150MA 



19396 


PP580C103F 


56289 


273C20 


56289 


273C20 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


86684 


CA3039 


86684 


CA3039 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 


07910 


1N4152 



4051 SERVICE VOL. 2 



5-7 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



CR877 


152-0141-02 


CR878 


152-0141-02 


CR881 


156-0106-00 


CR882 


156-0106-00 


CR883 


152-0141-02 


CR884 


152-0141-02 


CR885 


152-0141-02 


CR896 


152-0141-02 


CR897 


152-0141-02 


CR898 


152-0141-02 


Q51 


151-0188-00 


Q151 


151-0188-00 


Q672 


151-0192-00 


Q721 


151-0188-00 


Q795 


151-1025-00 


Q796 


151-0126-00 


Q797 


151-0410-00 


Q881 


151-0410-00 


Q892 


151-0126-00 


Q981 


151-0188-00 


Q982 


151-1078-00 


Q983 


151-1078-00 


Rl 


315-0153-00 


Rll 


315-0102-00 


R12 


315-0102-00 


R13 


315-0102-00 


R14 


315-0102-00 


R52 


315-0220-00 


R53 


315-0102-00 


R54 


315-0221-00 


R55 


315-0221-00 


R56 


315-0102-00 


R61 


315-0302-00 


R65 


315-0561-00 


R105 


315-0242-00 B010151 B020879X 


R152 


315-0220-00 


R153 


315-0242-00 


R171 


315-0242-00 


R172 


315-0242-00 


R173 


315-0242-00 


R174 


315-0242-00 


R175 


315-0242-00 


R217 


315-0102-00 


R218 


315-0242-00 XB020880 


R219 


315-0242-00 XB020880 


R285 


315-0562-00 


R311 


315-0200-00 


R321 


315-0200-00 


R352 


315-0302-00 


R365 


315-0242-00 


R435 


315-0242-00 XB020880 


R436 


315-0242-00 XB020880 



SEMICOND DEVICE : SILICON, 30V, 150MA 
SEMICOND DEVICE :SILICON, 30V, 150MA 
MICROCIRCUIT, LI : MONOLITHIC , 6-DIODE ARRAY 
MICROCIRCUIT , LI : MONOLITHIC , 6-DIODE ARRAY 
SEMICOND DEVICE: SILICON, 30V, 150MA 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



:SILICON,30V,150MA 
: SILICON, 30V f 150MA 
: SILICON, 30V, 150MA 
:SILICON,30V,150MA 
[SILICON, 30V, 150MA 



TRANS ISTOR : S ILICON , PNP 

TRANSISTOR: SILICON, PNP 

TRANS ISTOR :S ILICON, NPN,SEL FROM MPS6521 

TRANS ISTOR : S ILICON , PNP 

TRANSISTOR : SILICON, JFE , N-CHANNEL 



TRANSISTOR 
TRANSISTOR 
TRANSISTOR 
TRANSISTOR 
TRANSISTOR 



:S ILICON, NPN 
iSILICON, PNP 
[SILICON, PNP 
[SILICON, NPN 
[SILICON, PNP 



TRANS ISTOR : S ILICON , JFE , N-CHANNEL 
TRANSISTOR : S ILICON , JFE , N-CHANNEL 

RES.,FXD,CMPSN:15K OHM,5%,0.25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 

RES. ,FXD,CMPSN:22 OHM,5%,0.25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:220 OHM,5%,0.25W 
RES. ,FXD,CMPSN:220 OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 

RES.,FXD,CMPSN:3K OHM,5%,0.25W 
RES.,FXD,CMPSN:560 OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES.,FXD,CMPSN:22 OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 

RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES.,FXD,CMPSN:2.4K OHM,5%,0.25W 

RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES.,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES. ,FXD,CMPSN:5.6K OHM,5%,0.25W 
RES. ,FXD,CMPSN:20 OHM,5%,0.25W 

RES. ,FXD,CMPSN:20 OHM,5%,0.25W 
RES.,FXD,CMPSN:3K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.4K OHM,5%,0.25W 
RES.,FXD,CMPSN:2.4K OHM,5%,0.25W 



07910 1N4152 

07910 1N4152 

86684 CA3039 

86684 CA3039 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

01295 2N3906 

01295 2N3906 

80009 151-0192-00 

01295 2N3906 

80009 151-1025-00 

15818 2N2484 

80009 151-0410-00 

80009 151-0410-00 

15818 2N2484 

01295 2N3906 

80009 151-1078-00 

80009 151-1078-00 



01121 


CB1535 


01121 


CB1025 


01121 


CB1025 


01121 


CB1025 


01121 


CB1025 


01121 


CB2205 


01121 


CB1025 


01121 


CB2215 


01121 


CB2215 


01121 


CB1025 


01121 


CB3025 


01121 


CB5615 


01121 


CB2425 


01121 


CB2205 


01121 


CB2425 


01121 


CB2425 


01121 


CB2425 


01121 


CB2425 


01121 


CB2425 


01121 


CB2425 


01121 


CB1025 


01121 


CB2425 


01121 


CB2425 


01121 


CB5625 


01121 


CB2005 


01121 


CB2005 


01121 


CB3025 


01121 


CB2425 


01121 


CB2425 


01121 


CB2425 



5-8 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



;kt No. 



Tektronix Serial/Model No. 
Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R461 


315-0242-00 


R462 


315-0242-00 


R465 


315-0242-00 


R467 


315-0242-00 


R468 


315-0242-00 


R517 


315-0471-00 


R655 


315-0203-00 


R656 


315-0203-00 


R671 


321-0617-00 




■3 1 5_o4 72—00 


R675 


315-0335-00 


R676 


315-0273-00 


R677 


315-0203-00 


R681 


315-0114-00 


R682 


315-0183-00 


R683 


311-1230-00 


R684 


315-0472-00 


R685 


311-1230-00 


R691 


315-0271-00 


R692 


321-0613-00 


R695 


321-0932-00 


R713 


315-0102-00 


R714 


315-0102-00 


R721 


315-0202-00 


R722 


315-0132-00 


R751 


315-0102-00 


R752 


315-0472-00 


R791 


315-0472-00 


R792 


315-0472-00 


R793 


315-0472-00 


R794 


315-0203-00 


R811 


321-0412-00 


R816 


321-0329-00 


R853 


321-0357-00 


R854 


315-0101-00 


R867 


321-0374-00 


R868 


321-0416-00 


R869 


321-0374-00 


R870 


315-0101-00 


R873 


321-0363-00 


R874 


321-0306-00 


R875 


321-0204-00 


R876 


315-0101-00 


R877 


315-0396-00 


R881 


315-0472-00 


R882 


315-0472-00 


R883 


315-0472-00 


R884 


315-0100-00 


R885 


321-0223-00 


R886 


321-0251-00 


R887 


321-0280-00 


R888 


315-0681-00 


R891 


315-0473-00 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
■p-pc: 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 

RES. 
RES. 

RES. 
RES. 
RES. 

RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



FXD,CMPSN:2.4K OHM,5%,0.25W 
FXD,CMPSN:2.4K OHM,5%,0.25W 
FXD,CMPSN:2.4K OHM,5%,0.25W 
FXD, CMPSN: 2. 4K OHM,5%,0.25W 
FXD, CMPSN: 2, 4K OHM,5%,0.25W 

FXD,CMPSN:470 OHM,5%,0.25W 
FXD,CMPSN:20K OHM,5%,0.25W 
FXD,CMPSN:20K OHM,5%,0.25W 
FXD,FILM:111K OHM,1%,0.125W 
FXD CMPSN :4,7K OHM-5%-0.25W 



FXD,CMPSN:3.3M OHM,5%,0.25W 
FXD,CMPSN:27K OHM f 5%,0.25W 
FXD,CMPSN:20K OHM,5%,0.25W 
FXD, CMPSN :110K OHM,5%,0.25W 
FXD,CMPSN:18K OHM,5%,0.25W 

VAR,NONWIR:20K OHM,20%,0.50W 
FXD, CMPSN: 4. 7K OHM,5%,0.25W 
VAR,NONWIR:20K OHM,20%,0.50W 
FXD,CMPSN:270 OHM,5%,0.25W 
FXD,FILM:5.03K OHM,1%,0.125W 

FXD,FILM:2.5K OHM,1%,0.125W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5*%,0. 25W 
FXD,CMPSN:2K OHM,5%,0.25W 
FXD, CMPSN :1.3K OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD , CMPSN: 4. 7K OHM,5%,0.25W 
FXD, CMPSN: 4. 7K OHM,5%,0.25W 
FXD, CMPSN: 4. 7K OHM,5%,0.25W 
FXD, CMPSN: 4. 7K OHM,5%,0.25W 

FXD,CMPSN:20K OHM,5%,0.25W 
FXD,FIIM:191K OHM,1%,0.125W 
FXD,FILM:26.1K OHM,1%,0.125W 
FXD,FILM:51.1K OHM,1%,0.125W 
FXD,CMPSN:100 OHM,5%,0.25W 

FXD,FILM:76.8K OHM, 1%,0.125W 
FXD,FILM:210K OHM,1%,0.125W 
FXD, FILM: 76. 8K OHM,1%,0.125W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,FILM:59K OHM,1%,0. 125W 

FXD, FILM :15K OHM,1%,0. 125W 
FXD,FILM:1.3K OHM,1%,0.125W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:39M OHM,5%,0.25W 
FXD, CMPSN: 4. 7K OHM,5%,0.25W 

FXD, CMPSN: 4. 7K OHM,5%,0.25W 
FXD, CMPSN: 4. 7K OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,FILM:2.05K OHM,1%,0.125W 
FXD,FILM:4.02K OHM,1%,0.125W 

FXD,FILM:8.06K OHM,1%,0.125W 
FXD,CMPSN:680 OHM,5%,0.25W 
FXD,CMPSN:47K OHM,5%,0.25W 



01121 CB2425 

01121 CB2425 

01121 CB2425 

01121 CB2425 

01121 CB2425 

01121 CB4715 

01121 CB2035 

01121 CB2035 

91637 MFF1816G11102F 

01121 CB4725 



01121 


CB3355 


01121 


CB2735 


01121 


CB2035 


01121 


CB1145 


01121 


CB1835 


32997 


3386F-T04-203 


01121 


CB4725 


32997 


3386F-T04-203 


01121 


CB2715 


91637 


MFF1816G50300F 


91637 


MFF1816G2500F 


01121 


CB1025 


01121 


CB1025 


01121 


CB2025 


01121 


CB1325 


01121 


CB1025 


01121 


CB4725 


01121 


CB4725 


01121 


CB4725 


01121 


CB4725 


01121 


CB2035 


91637 


MFF1816G19102F 


91637 


MFF1816G26101F 


91637 


MFF1816G51101F 


01121 


CB1015 


91637 


MFF1816G76801F 


91637 


MFF1816G21002F 


91637 


MFF1816G76801F 


01121 


CB1015 


91637 


MFF1816G59001F 


91637 


MFF1816G15001F 


91637 


MFF1816G13000F 


01121 


CB1015 


01121 


CB3965 


01121 


CB4725 


01121 


CB4725 


01121 


CB4725 


01121 


CB1005 


91637 


MFF1816G20500F 


91637 


MFF1816G40200F 


91637 


MFF1816G80600F 


01121 


CB6815 


01121 


CB4735 



4051 SERVICE VOL. 2 



5-9 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
CktNo. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



RB92 


315-0681-00 


RB93 


315-0303-00 


R894 


315-0303-00 


R895 


315-0681-00 


R896 


315-0472-00 


R897 


315-0472-00 


R898 


315-0472-00 


R941 


315-0561-00 


R942 


315-0561-00 


R943 


315-0131-00" 


R944 


315-0100-00 


R949 


322-0697-02 


R951 


323-0510-00 


R952 


322-0696-00 


R953 


322-0695-00 


R954 


322-0694-00 


R955 


322-0693-00 


R956 


315-0100-00 


R961 


315-0101-00 


R962 


321-0374-00 


R963 


321-0416-00 


R964 


321-0374-00 


R965 


315-0396-00 


R971 


322-0694-00 


R972 


323-0510-00 


R973 


322-0695-00 


R974 


322-0693-00 


R981 


322-0696-00 


R982 


322-0697-02 


R983 


315-0473-00 


R984 


321-0269-00 


R985 


321-0217-00 


R986 


321-0234-00 B010151 


R986 


321-0259-00 B020521 


R987 


321-0281-00 


R988 


321-0269-00 


R989 


321-0217-00 


R990 


315-0472-00 


R991 


321-0280-00 


R992 


321-0251-00 


R993 


321-0223-00 


R994 


321-0234-00 B010151 


R994 


321-0259-00 B020521 


R995 


321-0281-00 


R996 


315-0182-00 


R998 


315-0302-00 


R999 


315-0302-00 


U21 


156-0651-00 


U61 


156-0426-00 


U81 


156-0600-00 


U91 


156-0600-00 


U101 


156-0323-00 



B020520 



B020520 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 



FXD r CMPSN:680 OHM,5%,0.25W 
FXD,CMPSN:30K OHM,5%,0.25W 
FXD,CMPSN:30K OHM,5%,0.25W 
FXD,CMPSN:680 OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 

FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:560 OHM,5%,0.25W 
FXD,CMPSN:560 OHM,5%,0.25W 
FXD,CMPSN:130 OHM,5%,0.25W 

FXD,CMPSN:10 OHM,5%,0.25W 
FXD,Fim:64.37K OHM,0.5%,0.25W 
FXD,FILM:2M OHM,1%,0.50W 
FXD,FILM:129K OHM,1%,0.25W 
FXD,FILM:258K OHM,1%,0.25W 

FXD,FILM:517K OHM,1%,0.25W 
FXD,FILM:1.036M OHM,1%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,FILM:76.8K OHM,1%,0.125W 

FXD,FILM:210K OHM,1%,0.125W 
FXD,FILM:76.8K OHM,1%,0.125W 
FXD,CMPSN:39M OHM,5%,0.25W 
FXD,FILM:517K OHM f l%,0.25W 
FXD,FILM:2M OHM,1%,0.50W 

FXD,FILM:258K OHM,1%,0.25W 
FXD,FILM:1.036M OHM,1%,0.25W 
FXD,FILM:129K OHM,1%,0.25W 
FXD,FILM:64.37K OHM,0.5%,0.25W 
FXD,CMPSN:47K OHM,5%,0.25W 

FXD,FILM:6.19K OHM,1%,0.125W 
FXD,FILM:1.78K OHM,1%,0.125W 
FXD,FILM:2.67K OHM,1%,0.125W 
FXD,FILM:4.87K OHM,1%,0.125W 
FXD,FILM:8.25K OHM,l%, 0.125W 

FXD,FILM:6.19K OHM,1%,0.125W 
FXD,FILM:1.78K OHM,l% ,0. 125W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,FILM:8.06K OHM,1%,0.125W 
FXD,FILM:4.02K OHM,1%,0.125W 

FXD,FILM:2.05K OHM,1%,0.125W 
FXD,FILM:2.67K OHM,l%,0.125W 
FXD,FILM:4.87K OHM r l%,0.125W 
FXD,FILM:8.25K OHM,1%,0.125W 
FXD,CMPSN:1.8K OHM,5%,0.25W 

FXD,CMPSN:3K OHM,5%,0.25W 
FXD,CMPSN:3K OHM,5%,0.25W 



01121 CB6815 

01121 CB3035 

01121 CB3035 

01121 CB6815 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB5615 

01121 CB5615 

01121 CB1315 

01121 CB1005 

91637 MFF1421D64371D 

75042 CECT0-2004F 

91637 MFF1421G12902F 

91637 MFF1421G25802F 

91637 MFF1421G51702F 

91637 MFF1421G10363F 

01121 CB1005 

01121 CB1015 

91637 MFF1816G76801F 

91637 MFF1816G21002F 

91637 MFF1816G76801F 

01121 CB3965 

91637 MFF1421G51702F 

75042 CECT0-2004F 



MICROCIRCUIT,DI: 8-BIT PRL-OUT,SER SHF RGTR 
MICROCIRCUIT,DI:MICROPROCESSOR 6800 
MICROCIRCUIT,DI:QUAD BUS XCVR 
MICROCIRCUIT,DI:QUAD BUS XCVR 
MICRO-CIRCUIT , DI : HEX . INVERTER 



91637 


MFF1421G25802F 


91637 


MFF1421G10363F 


91637 


MFF1421G12902F 


91637 


MFF1421D64371D 


01121 


CB4735 


91637 


MFF1816G61900F 


91637 


MFF1816G17800F 


91637 


MFF1816G26700F 


91637 


MFF1816G48700F 


91637 


MFF1816G82500F 


91637 


MFF1816G61900F 


91637 


MFF1816G17800F 


01121 


CB4725 


91637 


MFF1816G80600F 


91637 


MFF1816G40200F 


91637 


MFF1816G20500F 


91637 


MFF1816G26700F 


91637 


MFF1816G48700F 


91637 


MFF1816G82500F 


01121 


CB1825 


01121 


CB3025 


01121 


CB3025 


01295 


SN74LS164N 


04713 


MC6800L 


04713 


MC3441P 


04713 


MC3441P 


01295 


SN74S04N 



5-10 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Mode! No. 
CktNo. Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



U105 


156-0481-00 




Ulll 


156-0472-00 




0115 


156-0651-00 




U121 


156-0479-00 




U125 


156-0030-00 




U127 


156-0382-00 




U135 


156-0385-00 




0141 


156-0403-00 




0153 


156-0531-00 




0163 


255—0531—00 




0181 


156-0600-00 




0183 


156-0535-00 




0191 


156-0600-00 




0193 


156-0383-00 




0195 


156-0479-00 




0205 


156-0469-00 




0211 


156-0464-00 




0215 


156-0466-00 




0217 


156-0388-00 




0218 


156-0530-00 


XB020880 


0225 


156-0634-00 




0227 


307-0422-00 




0231 


156-0535-00 




0235 


156-0464-00 




0251 


156-0535-00 




0261 


156-0535-00 




0265 


156-0427-00 




0271 


156-0385-00 




0281 


156-0535-00 




0285 


156-0666-01 




0291 


156-0078-00 




0295 


156-0674-01 


B010151 B030539 


0295 


156-0674-02 


B030540 


0311 


156-0635-00 




0321 


156-0635-00 




0331 


156-0382-00 




0335 


156-0646-00 




0337 


156-0646-00 




0361 


156-0427-00 




0381 


156-0665-01 


B010151 B020262 


0381 


156-0665-02 


B020263 


0385 


156-0664-01 


B010151 B030539 


0385 


156-0664-02 


B030540 


0391 


156-0673-01 


B010151 B030539 


0391 


156-0673-02 


B030540 B069999 


0391 


156-0673-03 


B070000 


0395 


156-0672-01 


B010151 B061590 


0395 


156-0672-02 


B061591 


0411 


156-0635-00 




0415 


156-0635-00 




0421 


156-0635-00 




0425 


156-0635-00 




0431 


156-0530-00 





MICROCIRCOIT,DI: TRIPLE 3-INPOT AND GATE 
MICR0CIRC0IT,DI:13-INP0T NAND GATE 
MICR0CIRC0IT,DI:8-BIT PRL-OOT,SER SHF RGTR 
MXCROCIRCOIT,DI:QOAD 2-INPOT OR GATE 
MICROCIRCOIT,DI:QOAD 2-INPOT POS NAND GATE 

MICROCIRCOIT,DI:QOAD 2-INPOT NAND GATE 
MICROCIRCOIT,DI :HEX. INVERTER 
MICROCIRCOIT,DI:HEX. INV W/OPEN COLL OOTPS 
MICROCIRCOIT , DI : TRANSCEIVER 

MICROCIRCOIT, DlrQOAD BOS XCVR 
MICROCIRCOIT, DI:TRI-STATE HEX BOFF 
MICROCIRCOIT, DI:QOAD BOS XCVR 
MICROCIRCOIT, DI:QOAD 2-INPOT NOR GATE 
MICROCIRCOIT, DI:QOAD 2-INPOT OR GATE 

MICROCIRCOIT, DI: 3-LINE TO 8-LINE DECODER 
MICROCIRCOIT, DI:DOAL 4-INPOT NAND GATE 
MICROCIRCOIT, DlrQOAD 2-INPOT NAND BOFFER 
MICROCIRCOIT, DItDOAL D-TYPE FLIP-FLOP 
MICROCIRCOIT,DI:SEL/MOLTIPLEXE,16 PIN DIP 

MICROCIRCOIT, DI:CLK DRVR,4 CHAN, GATE CONT 
RES. ,FXD,FILM:15 RES. NETWORK 
MICROCIRCOIT, DI:TRI-STATE HEX BOFF 
MICROCIRCOIT, DIrDOAL 4-INPOT NAND GATE 
MICROCIRCOIT, DI:TRI-STATE HEX BOFF 

MICROCIRCOIT, DI:TRI-STATE HEX BOFF 
MICROCIRCOIT, DI: PERIPHERAL INTERFACE ADPTR 
MICROCIRCOIT, DI :HEX. INVERTER 
MICROCIRCOIT, DI:TRI-STATE HEX BOFF 
MICROCIRCOIT ,DI:16K ROM,COSTOM MASK 

MICROCIRCOIT, DI: 4 TO 16 LINE DECODER 
MICROCIRCOIT, DI:16K ROM,COSTOM MASK 
MICROCIRCOIT, DI:16K ROM,COSTOM MASK 
MICROCIRCOIT, DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCOIT, DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCOIT, DI:QOAD 2-INPOT NAND GATE 
MICROCIRCOIT, DI: 4 BIT BINARY COONTER 
MICROCIRCOIT, DI: 4 BIT BINARY COONTER 
MICROCIRCOIT, DI: PERIPHERAL INTERFACE ADPTR 
MICROCIRCOIT, DI: 2 048 X 8 ROM 

MICROCIRCOIT, DI:2048 X 8 ROM 
MICROCIRCOIT, DI:16K ROM,COSTOM MASK 
MICROCIRCOIT, DI:16K ROM,COSTOM MASK 
MICROCIRCOIT, DI:16K ROM,COSTOM MASK 
MICROCIRCOIT, DI:16K ROM,COSTOM MASK 

MICROCIRCOIT, DI:16K ROM,COSTOM MASK 
MICROCIRCOIT, DI:16K ROM,COSTOM MASK 
MICROCIRCOIT, DI:2048 X 8 CUSTOM MASK ROM 
MICROCIRCOIT, DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCOIT, DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCOIT, DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCOIT, DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCOIT, DI:SEL/MOLTIPLEXE, 16 PIN DIP 



01295 SN74LS11N 

01295 SN74S133N 

01295 SN74LS164N 

01295 SN74LS32N 

01295 SN7400N 



01295 


SN74LS00N 


01295 


SN74LS04N 


01295 


SN74S05N 


27014 


DM8833N 


27014 


DM8833N 


04713 


MC3441P 


27014 


DM8097M 


04713 


MC3441P 


01295 


SN74LS02N 


01295 


SN74LS32N 


01295 


SN74LS138N 


01295 


SN74LS20N 


01295 


SN74LS37N 


01295 


SN74LS74N 


80009 


156-0530-00 


04713 


MC3460L 


73138 


898-1-R242J 


27014 


DM8097M 


01295 


SN74LS20N 


27014 


DM8097M 


27014 


DM8097M 


80009 


156-0427-00 


01295 


SN74LS04N 


27014 


DM8097M 


80009 


156-0666-01 



01295 SN74154N 

80009 156-0674-01 

80009 156-0674-02 

80009 156-0635-00 

80009 156-0635-00 

01295 SN74LS00N 

01295 SN74LS93N 

01295 SN74LS93N 

80009 156-0427-00 

80009 156-0665-01 

04713 SCM6832L 

80009 156-0664-01 

80009 156-0664-02 

80009 156-0673-01 

80009 156-0673-02 

80009 156-0673-03 

80009 156-0672-01 

80009 156-0672-02 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0530-00 



4051 SERVICE VOL. 2 



5-11 



REPLACEABLE ELECTRICAL PARTS-4051 



Ckt No. 



Tektronix Serial /Model No. 
Part No. Eft Dscont 



Name & Description 



Code 


Mfr Part Number 


80009 


156-0530-00 


80009 


156-0427-00 


80009 


156-0663-01 


80009 


156-0662-01 


80009 


156-0661-01 



U435 


156-0530-00 




U461 


156-0427-00 




U481 


156-0663-01 




U485 


156-0662-01 




U487 


156-0661-01 




U491 


156-0671-01 


B010151 B030539 


U491 


156-0671-02 


B030540 


U495 


156-0670-01 




U497 


156-0669-01 




U511 


156-0635-00 




U515 


156-0635-00 




U517 


156-0635-00 




U521 


156-0635-00 




U525 


156-0635-00 




U527 


156-0635-00 




U531 


156-0702-00 




U535 


307-0422-00 




U537 


156-0702-00 




U561 


156-0427-00 




U565 


156-0427-00 




U581 


156-0660-01 




U585 


156-0659-01 


B010151 B030539 


U585 


156-0659-02 


B030540 


U591 


156-0668-01 


B010151 B061590 


U591 


156-0668-02 


B061591 B071882 


U591 


156-0668-01 


B071883 


U595 


156-0667-01 


B010151 B030539 


U595 


156-0667-02 


B030540 


U611 


156-0635-00 




U615 


156-0635-00 




U621 


156-0635-00 




U625 


156-0635-00 




U655 


156-0385-00 




U665 


156-0385-00 




U671 


156-0487-00 




U683 


156-0402-00 




U693 


156-0706-00 




U711 


156-0383-00 




U713 


156-0388-00 




U715 


156-0382-00 




U721 


156-0385-00 




U751 


156-0131-00 




U755 


156-0391-00 




U761 


156-0146-00 




U765 


156-0392-00 




U771 


156-0385-00 




U775 


156-0391-00 




U781 


156-0093-00 




U783 


156-0383-00 




U785 


156-0392-00 




U791 


156-0140-00 




U795 


156-0382-00 




U811 


156-0656-00 





MICR0CIRCUIT,DI:SEL/MULTIPLEXE,16 PIN DIP 
MICROCIRCUIT,DI: PERIPHERAL INTERFACE ADPTR 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT, DI:16K ROM, CUSTOM MASK 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 

MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI: 4 096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,DI:3 STATE INVERTING HEX BFR 
RES., FXD, FILM: 15 RES. NETWORK 
MICROCIRCUIT,DI:3 STATE INVERTING HEX BFR 
MICROCIRCUIT,DI: PERIPHERAL INTERFACE ADPTR 
MICROCIRCUIT,DI: PERIPHERAL INTERFACE ADPTR 



MICROCIRCUIT , DI : 16K 
MICROCIRCUIT , DI : 16K 
MICROCIRCUIT , DI : 16K 
MICROCIRCUIT, DI : 16K 
MICROCIRCUIT , DI : ROM 



ROM, CUSTOM MASK 
ROM, CUSTOM MASK 
ROM, CUSTOM MASK 
ROM, CUSTOM MASK 
CUSTOM MASK 



MICROCIRCUIT, DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT, DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT, DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT, DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT, DI: 4 096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT, DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT, DI: 4 096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT , DI : HEX . INVERTER 
MICROCIRCUIT, DI : HEX. INVERTER 
MICROCIRCUIT, LI: DUAL RETRIG,ONE SHOT 

MICROCIRCUIT , DI : TIMER 
MICROCIRCUIT, DI: DUAL MONOSTABLE MV 
MICROCIRCUIT, DI: QUAD 2-INPUT NOR GATE 
MICROCIRCUIT, DI: DUAL D-TYPE FLIP-FLOP 
MICROCIRCUIT, DI: QUAD 2-INPUT NAND GATE 

MICROCIRCUIT, DI : HEX. INVERTER 
MICROCIRCUIT, DI:8-BIT SER TO PARALLEL SHF 
MICROCIRCUIT, DI: HEX LATCH WITH CLEAR 
MICROCIRCUIT, DI:8-BIT SHIFT REGISTER 
MICROCIRCUIT, DI:QUAD LATCH 

MICROCIRCUIT , DI : HEX . INVERTER 
MICROCIRCUIT, DI: HEX LATCH WITH CLEAR 
MICROCIRCUIT, DI :HEX. INVERTER 
MICROCIRCUIT, DI:QUAD 2-INPUT NOR GATE 
MICROCIRCUIT, DI:QUAD LATCH 

MICROCIRCUIT, DI: HEX BFR,15V,TTL 
MICROCIRCUIT, DI: QUAD 2-INPUT NAND GATE 
MICROCIRCUIT , DI : DECADE COUNTER 



80009 156-0671-01 

80009 156-0671-02 

80009 156-0670-01 

80009 156-0669-01 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 



80009 


156-0702-00 


73138 


898-1-R242J 


80009 


156-0702-00 


80009 


156-0427-00 


80009 


156-0427-00 


80009 


156-0660-01 


80009 


156-0659-01 


80009 


156-0659-02 


80009 


156-0668-01 


80009 


156-0668-02 


80009 


156-0668-01 


80009 


156-0667-01 


80009 


156-0667-02 


80009 


156-0635-00 


80009 


156-0635-00 


80009 


156-0635-00 


80009 


156-0635-00 


01295 


SN74LS04N 


01295 


SN74LS04N 


07263 


96L02PC 


18324 


NE555V 


01295 


SN74221N 


01295 


SN74LS02N 


01295 


SN74LS74N 


01295 


SN74LS00N 


01295 


SN74LS04N 


01295 


SN74164N 


01295 


SN74LS174N 


01295 


SN74165N 


01295 


SN74LS175N 


01295 


SN74LS04N 


01295 


SN74LS174N 


01295 


SN7416N 


01295 


SN74LS02N 


01295 


SN74LS175N 


01295 


SN7417N 


01295 


SN74LS00N 


80009 


156-0656-00 



5-12 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 





Tektronix 


Serial/ Model No. 


Ckt No. 


Part No. 


Eff Dscont 


U815 


156-0487-00 




U821 


156-0656-00 




U823 


156-0656-00 




U825 


156-0656-00 




13845 


156-0093-00 




U855 


156-0158-00 




U860 


307-1054-00 




U875 


156-0158-00 




U998 


156-0013-00 




U999 


156-0013-00 




VR517 


152-0279-00 




VR694 


152-0279-00 




Yl 


158-0103-00 





Name & Description 



Mfr 
Code 



Mfr Part Number 



MICROCIRCUIT, LI: DUAL RETRIG,ONE SHOT 
MICROCIRCUIT , DI : DECADE COUNTER 
MICROCIRCUIT,DI: DECADE COUNTER 
MICROCIRCUIT, DI: DECADE COUNTER 
MICROCIRCUIT, DI :HEX. INVERTER 

MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 
RES., NETWORK, TF: DIGITAL ANALOG CONVERTER 
MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 
MICROCIRCUIT, DI:DIFF COMPARATOR 

ViTriTvviT'DnTTTrn nT.riTptP •"•Q^ro&OAnvTO 

SEMICOND DEVICE:ZENER,0.4W,5.1V,5% 
SEMICOND DEVICE:ZENER,0.4W,5.1V,5% 

XTAL UNIT, QTZ:12.5MHZ, 0.01% SERIES RESN 



07263 
80009 
80009 
80009 
01295 



96L02PC 

156-0656-00 

156-0656-00 

156-0656-00 

SN7416N 



80009 156-0158-00 

80009 307-1054-00 

80009 156-0158-00 

07263 U5B7710393 

07263 U5B7710393 

80009 152-0279-00 

80009 152-0279-00 

80009 158-0103-00 



A3 CKT BOARD ASSY: MEMORY ONE 



CI 


283-0010-00 


C2 


283-0111-00 


C3 


283-0010-00 


Cll 


283-0010-00 


C12 


283-0111-00 


C21 


283-0010-00 


C22 


283-0111-00 


C31 


283-0010-00 


C32 


283-0111-00 


C41 


283-0010-00 


C42 


283-0111-00 


C51 


283-0010-00 


C52 


283-0111-00 


C61 


283-0010-00 


C62 


283-0111-00 


C81 


283-0203-00 


C101 


283-0010-00 


C102 


283-0111-00 


C103 


283-0010-00 


cm 


283-0010-00 


C112 


283-0111-00 


C121 


283-0010-00 


C122 


283-0111-00 


C131 


283-0010-00 


C132 


283-0111-00 


C141 


283-0010-00 


C142 


283-0111-00 


C151 


283-0010-00 


C152 


283-0111-00 


C161 


283-0010-00 


C162 


283-0111-00 


C171 


283-0203-00 


C201 


283-0010-00 


C202 


283-0111-00 



CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP, 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP, 
CAP. 
CAP. 



FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,CER DI:0.47UF,20%,50V 
FXD.CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF. +100-20%, 50V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.47UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 



56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


72982 


8131N075 E474M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


72982 


8131N075 E474M 


56289 


273C20 


72982 


8121-N088Z5U104M 



4051 SERVICE VOL. 2 



5-13 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
CktNo. Part No. Eff Dscont 



Name & Description 



Mfr 

Code Mfr Part Number 



C203 


283-0010-00 


C211 


283-0010-00 


C212 


283-0111-00 


C221 


283-0010-00 


C222 


283-0111-00 


C231 


283-0010-00 


C232 


283-0111-00 


C241 


283-0010-00 


C242 


283-0111-00 


C251 


283-0010-00 


C252 


283-0111-00 


C261 


283-0010-00 


C262 


283-0111-00 


C271 


283-0203-00 


C301 


283-0010-00 


C302 


283-0111-00 


C303 


283-0010-00 


C311 


283-0010-00 


C312 


283-0111-00 


C321 


283-0010-00 


C322 


283-0111-00 


C331 


283-0010-00 


C332 


283-0111-00 


C341 


283-0010-00 


C342 


283-0111-00 


C351 


283-0010-00 


C352 


283-0111-00 


C361 


283-0010-00 


C362 


283-0111-00 


C371 


283-0203-00 


C401 


283-0010-00 


C402 


283-0111-00 


C403 


283-0010-00 


C411 


283-0010-00 


C412 


283-0111-00 


C421 


283-0010-00 


C422 


283-0111-00 


C431 


283-0010-00 


C432 


283-0111-00 


C441 


283-0010-00 


C442 


283-0111-00 


C451 


283-0010-00 


C452 


283-0111-00 


C461 


283-0010-00 


C462 


283-0111-00 


C471 


290-0517-00 


C472 


290-0517-00 


C474 


283-0203-00 


C501 


283-0010-00 


C502 


283-0111-00 


C503 


283-0010-00 


C511 


283-0010-00 


C512 


283-0111-00 



CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 



FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UP, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.47UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.47UF,20%,50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,ELCTLT:6.8UF,20%,35V 
FXD,ELCTLT:6 .8UF, 20% , 35V 
FXD,CER DI:0.47UF,20%,50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 

FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.05UF, +100-20%, 50V 
FXD,CER DI:0.1UF,20%,50V 



56289 273C20 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

72982 8131N075 E474M 

56289 273C20 



72982 


8121-N088Z5U104M 


56289 


273C20 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


72982 


8131N075 E474M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


196D685X0035KA1 


56289 


196D685X0035KA1 


72982 


8131N075 E474M 


56289 


273C20 


72982 


8121-N088Z5U104M 


56289 


273C20 


56289 


273C20 


72982 


8121-N088Z5U104M 



5-14 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 





Tektronix 


Ckt No. 


Part No. 


C521 


283-0010-00 


C522 


283-0111-00 


C531 


283-0010-00 


C532 


283-0111-00 


C541 


283-0010-00 


C542 


283-0111-00 


C551 


283-0010-00 


C552 


283-0111-00 


C56I 


283—0010—00 


C562 


283-0111-00 


C571 


283-0203-00 


C581 


290-0517-00 


R41 


315-0200-00 


R81 


315-0200-00 


R83 


315-0200-00 


R85 


315-0200-00 


R87 


315-0101-00 


R89 


315-0101-00 


R141 


315-0200-00 


R173 


315-0101-00 


R175 


315-0101-00 


R179 


315-0101-00 


R241 


315-0200-00 


R271 


315-0101-00 


R273 


315-0101-00 


R276 


315-0101-00 


R278 


315-0101-00 


R279 


315-0101-00 


R341 


315-0200-00 


R371 


315-0101-00 


R372 


315-0101-00 


R373 


315-0101-00 


R379 


315-0101-00 


R441 


315-0200-00 


R471 


315-0471-00 


R472 


315-0200-00 


R541 


315-0200-00 


R571 


315-0200-00 


R581 


315-0200-00 


uii: 

U21?" 


156-0635-00 


156-0635-00 


156-0635-00 


U3lj 


156-0635-00 


U41 


156-0635-00 


U51?- 
U61!" 


156-0635-00 


156-0635-00 


U71?" 
U81 1 
UlOl 


156-0635-00 


156-0634-00 


156-0635-00 


urn] - 


156-0635-00 


U12l]- 


156-0635-00 


U131 


156-0635-00 



Serial/Model No. 
Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



CAP. 


FXD 


CER DI:0.05UF, +100-20%, 50V 


CAP. 


FXD 


CER DI:0.1UF,20%,50V 


CAP. 


FXD 


CER DI:0.05UF, +100-20%, 50V 


CAP. 


FXD 


CER DI:0.1UF,20%,50V 


CAP., 


FXD 


CER DI:0.05UF, +100-20%, 50V 


CAP. 


FXD 


CER DI:0.1UF,20%,50V 


CAP. 


FXD 


CER DI:0.05UF, +100-20%, 50V 


CAP. 


FXD 


CER DI:0.1UF,20%,50V 


r<7\p 


ovn 


nvv> m-.n n^TTT? j.1 nn-5n& _ snv 


CAP. 


FXD 


CER DI:0.1UF,20%,50V 


CAP. 


FXD 


CER DI:0.47UF,20%,50V 


CAP. 


FXD 


ELCTLT:6.8UF,20%,35V 


RES. 


FXD 


CMPSN:20 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:20 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:20 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:20 OHM, 5%, 0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:20 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:20 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN-.20 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


,CMPSN:100 OHM,5%,0.25W 


RES. 


FXD 


CMPSN:20 OHM,5%,0.25W 


RES. 


FXD 


,CMPSN:470 OHM,5%,0.25W 


RES. 


FXD 


r CMPSN:20 OHM,5%,0.25W 


RES* 


,FXD 


,CMPSN:20 OHM.5%,0.25W 


RES. 


r FXD 


,CMPSN:20 OHM,5%,0.25W 


RES. 


r FXD 


,CMPSN:20 OHM,5%,0.25W 



MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI: 4 096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,DI: 4 096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:CLK DRVR,4 CHAN, GATE CONT 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI: 4 096-BIT DYN RNDM ACS MEM 



56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 

56289 273C20 

72982 8121-N088Z5U104M 



72982 
56289 



8131N075 E474M 
196D685X0035KA1 



01121 CB2005 

01121 CB2005 

01121 CB2005 

01121 CB2005 

01121 CB1015 

01121 CB1015 

01121 CB2005 

01121 CB1015 

01121 CB1015 

01121 CB1015 

01121 CB2005 

01121 CB1015 

01121 CB1015 

01121 CB1015 

01121 CB1015 

01121 CB1015 

01121 CB2005 

01121 CB1015 

01121 CB1015 

01121 CB1015 

01121 CB1015 

01121 CB2005 

01121 CB4715 

01121 CB2005 

01121 CB2005 

01121 CB2005 

01121 CB2005 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

04713 MC3460L 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 



On 670-4004-03 boards only. 



4051 SERVICE VOL. 2 



5-15 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



ui4r 
ui5i: 
ui6i: 

U171, 
U20l" 



U221, 
U231J 
U24l" 
U251" 



U261, 
U271^ 
U30l' 
U31l" 
U321* 



U331, 
U341' 
U351' 
U361' 
U371' 



U40i: 
U41i: 
U421~ 
U43l" 
U441~ 



U451I 
U461I 
U47i: 

usoi: 

U511" 



156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 

155-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 

156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 

156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 

156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 

156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 



MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,-DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUTT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI: 4 096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,DI: 4 096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT f DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT,DI: 4 096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI: 4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 



80009 
80009 
80009 
80009 
80009 



156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 



80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 

80009 156-0635-00 



U521I 
U53i: 
U54i: 
U551I 
U561' 



U571I 
U581' 



VR471 



156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 
156-0635-00 

156-0635-00 
156-0634-00 

152-0279-00 



MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:4096-BIT DYN RNDM ACS MEM 

MICROCIRCUIT r DI:4096-BIT DYN RNDM ACS MEM 
MICROCIRCUIT,DI:CLK DRVR,4 CHAN, GATE CONT 

SEMICOND DEVICE:ZENER,0.4W,5.1V,5% 



80009 


156-0635- 


-00 


80009 


156-0635- 


-00 


80009 


156-0635- 


-00 


80009 


156-0635- 


-00 


80009 


156-0635- 


-00 


80009 


156-0635- 


-00 


04713 


MC3460L 




80009 


152-0279- 


-00 



A4 CKT BOARD ASSY: DISPLAY 
(672-0546-03 - 672-0546-04) 



Cll 


283-0033-00 


C12 


283-0101-00 


C23 


283-0008-00 


C25 


283-0008-00 


C29 


281-0523-00 


C44 


283-0068-00 



CAP. ,FXD,CER DI:0.001UF, 6000V 

CAP. ,FXD,CER DI:4700PF, +80-20%, 6000V 

CAP. ,FXD,CER DI:0.1UF,500V 

CAP.,FXD,CER DI:0.1UF,500V 

CAP. ,FXD,CER DI:100PF,+/~20PF,500V 

CAP. ,FXD,CER DI:0.01UF, +100-0%, 500V 



72982 3906BW200E102P 

56289 45C11A 

56289 275C8 

56289 275C8 

72982 301-000U2M0101M 

56289 19C241 



■••On 670-4004-03 boards only. 

2 On 670-4004-02 and -03 boards only. 

3 On 670-4004-01, -02 and -03 boards. 



5-16 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS-4051 



Tektronix Serial/Model No. 
Ckt No. Part No. Eft Dscont 



\Jt\i. nv. 




C62 


281-0550-00 


C64 


283-0068-00 


C86 


283-0092-00 


C96 


283-0092-00 


CllO 


283-0101-00 


C113 


283-0101-00 


C136 


283-0008-00 


C147 


283-0068-00 


C148 


281-0523-00 


C151 


283-0177-00 


C158 


283-0008-00 


C159 


283-0008-00 


C175 


281-0605-00 


C177 


281-0605-00 


C189 


283-0068-00 


C190 


283-0068-00 


C196 


290-0525-00 


C213 


283-0291-00 


C214 


283-0162-00 


C215 


283-0101-00 


C222 


283-0177-00 


C228 


283-0068-00 


C232 


283-0068-00 


C243 


283-0000-00 


C244 


283-0068-00 


C255 


281-0623-00 


C257 


281-0623-00 


C258 


283-0177-00 


C259 


283-0177-00 


C286 


281-0605-00 


C291 


281-0605-00 


C311 


283-0021-00 


C312 


283-0021-00 


C325 


283-0067-00 


C333 


281-0525-00 


C334 


283-0177-00 


C342 


281-0504-00 


C343 


281-0604-00 


C353 


290-0301-00 


C363 


283-0000-00 


C364 


283-0000-00 


C370 


290-0260-00 


C427 


283-0067-00 


C432 


283-0177-00 


C435 


290-0316-00 


C437 


283-0111-00 


C439 


283-0111-00 


C459 


290-0534-00 


C466 


281-0549-00 


C468 


290-0297-00 


C545 


283-0081-00 


C650 


283-0177-00 


C659 


281-0622-00 



Name & Description 



Mfr 
Code 



Mfr Part Number 



CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 



FXD,CER DI:120PF,10%,500V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,CER DI:0.03UF, +80-20% ,200V 
FXD,CER DI:0.03UF, +80-20%, 200V 
FXD,CER DI:4700PF, +80-20%, 6000V 

FXD,CER DI:4700PF, +80-20%, 6000V 
FXD,CER DI:0.1UF,500V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,CER DI:100PF,+/-20PF,500V 
r FXD,CER DI:iUF, +80-20%, 25V 

P FXD,CER DI:0.1UF,500V 
r FXD,CER DI:0.1UF,500V 
,FXD,CER DI:200PF,10%,5Q0V 
,FXD,CER DI:200PF,10%,500V 
,FXD,CER DI:0.01UF, +100-0%, 500V 

FXD,CER DI:0.01UF, +100-0%, 500V 
FXD , ELCTLT : 4 . 7UF , 20% , 50V 
FXD,CER DI:25PF,10%,6000V 
FXD,CER DI:0.01UF, +80-30%, 5000V 
FXD,CER DI:4700PF, +80-20%, 6000V 

FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,CER DI:0.001UF, +100-0%, 500V 
FXD,CER DI:0.01UF, +100-0%, 500V 

FXD,CER DI:650PF,5%,500V 
FXD-CER DT:65OPF,5%,500V 
FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:200PF,10%,500V 

FXD,CER DI:200PF,10%,5O0V 
FXD,CER DI:0.001UF, 20%, 5000V 
FXD,CER DI:0.001UF, 20%, 5000V 
FXD,CER DI:0.001UF,10%,20OV 
FXD,CER DI:470PF,+/-94PF,500V 

FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:10PF,+/-1PF,500V 
FXD,CER DI:2.2PF,+/-0.25PF,500V 
FXD, ELCTLT :10UF, 10%, 20V 
FXD,CER DI:0.001UF, +100-0%, 500V 

FXD,CER DI:0.001UF, +100-0%, 500V 
FXD, ELCTLT :50UF, +75-10%, 200V 
FXD,CER DI:0.001UF,10%,200V 
FXD,CER DI:1UF, +80-20%, 25V 
FXD,ELCTLT:47UF,20%,35V 

FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.1UF,20%,50V 
FXD, ELCTLT: 1UF, 20%, 35V 
FXD,CER DI:68PF,10%,500V 
FXD , ELCTLT : 3 9UF , 10% , 10V 

FXD,CER DI:0.1UF, +80-20%, 25V 
,FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:47PF,1%,500V 



04222 7001-1373 

56289 19C241 

72982 845-534E303Z 

72982 845-534E303Z 

56289 45C11A 

56289 45C11A 

56289 275C8 

56289 19C241 

72982 301-000U2M0101M 

72982 8131N039 E 105Z 

56289 275C8 

56289 275C8 

04222 7001-1375 

04222 7001-1375 

56289 19C241 



56289 


19C241 


56289 


196D475X0050KA1 


56289 


41C426 


56289 


112C403 


56289 


45C11A 


72982 


8131N039 E 105Z 


56289 


19C241 


56289 


19C241 


72982 


831-516E102P 


56289 


19C241 


04222 


7001-1362 


04222 


7001-1362 


72982 


8131N039 E 105Z 


72982 


8131N039 E 105Z 


04222 


7001-1375 


04222 


7001-1375 


72982 


848-556-Y5S-102M 


72982 


848-556-Y5S-102M 


72982 


835-515B102K 


04222 


7001-1364 


72982 


8131N039 E 105Z 


72982 


301-055C0G0100F 


72982 


301-000C0J0229C 


56289 


150D106X9020B2 


72982 


831-516E102P 


72982 


831-516E102P 


56289 


34D506G200GL4 


72982 


835-515B102K 


72982 


8131N039 E 105Z 


56289 


150D476X0035S2 


72982 


8121-N088Z5U104M 


72982 


8121-N088Z5U104M 


56289 


196D105X0035HA1 


72982 


301-000U2J0680K 


56289 


150D396X9010B2 


56289 


36C600 


72982 


8131N039 E 105Z 


72982 


308-000C0G0470F 



4051 SERVICE VOL. 2 



5-17 



REPLACEABLE ELECTRICAL PARTS-4051 



Tektronix Serial/Model No. 
CktNo. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



C664 


283-0000-00 


C668 


290-0517-00 


C669 


290-0517-00 


C671 


290-0536-00 


C672 


290-0536-00 


CR4 


152-0426-00 


CR20 


152-0426-00 


CR21 


152-0061-00 


CR22 


152-0061-00 


CR23 


152-0066-01 


CR24 


152-0400-00 


CR40 


152-0066-01 


CR45 


152-0141-02 


CR59 


152-0141-02 


CR67 


152-0141-02 


CR81 


152-0141-02 


CR82 


152-0141-02 


CR91 


152-0141-02 


CR92 


152-0141-02 


CR103 


152-0426-00 


cum 


152-0061-00 


CR122 


152-0141-02 


CR128 


152-0066-01 


CR169 


152-0040-00 


CR203 


152-0408-00 


CR204 


152-0408-00 


CR264 


152-0107-00 


CR311 


152-0429-00 


CR312 


152-0429-00 


CR327 


152-0141-02 


CR328 


152-0141-02 


CR350 


152-0141-02 


CR395 


152-0141-02 


CR396 


152-0141-02 


CR397 


152-0141-02 


CR398 


152-0141-02 


CR429 


152-0412-00 


CR432 


152-0333-00 


CR450 


152-0141-02 


CR475 


152-0141-02 


CR476 


152-0141-02 


CR497 


152-0141-02 


CR575 


152-0141-02 


CR586 


152-0141-02 


CR593 


152-0141-02 


CR596 


152-0141-02 


CR597 


152-0141-02 


CR677 


152-0141-02 


CR678 


152-0141-02 


CR775 


152-0141-02 


CR781 


152-0141-02 


DS1 


150-0035-00 



XB051379 



CAP. ,FXD,CER DI:0.001UF, +100-0%, 500V 
CAP. ,FXD,ELCTLT:6.8UF,20%,35V 
CAP. ,FXD,ELCTLT:6.8UF,20%,35V 
CAP. ,FXD,ELCTLT:10UF,20%,25V 
CAP. ,FXD,ELCTLT:10UF,20%,25V 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



:SILICON,400V,400MA 
:SILICON,400V,400MA 
: SILICON, 175V, 100MA 
: SILICON, 175V, 100MA 
:SILICON,400V,1A 



SEMICOND DEVICE:SILICON,400V,1A 
SEMICOND DEVICE : SILICON, 400V, 1A 
SEMICOND DEVICE: SILICON, 30V, 150MA 
SEMICOND DEVICE :SILIC0N, 30V, 150MA 
SEMICOND DEVICE tSILICON, 30V, 150MA 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



:SILICON,30V,150MA 
:SILICON,30V,150MA 
:SILICON,30V,150MA 
:SILICON,30V,150MA 
[SILICON, 400V, 400MA 



SEMICOND DEVICE:SILICON,175V,100MA 
SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE tSILICON, 400V, 1A 
SEMICOND DEVICE: SILICON, 600V, 1A 
SEMICOND DEVICE : S ILICON , 10KV , 5MA 

SEMICOND DEVICE : S ILICON, 10KV,5MA 
SEMICOND DEVICE:SILICON,400V,400MA 
SEMICOND DEVICE: SILICON, 5000V, 10MA 
SEMICOND DEVICE: SILICON, 5000V, 10MA 
SEMICOND DEVICE tSILICON, 30V, 150MA 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



[SILICON, 30V, 150MA 
:SILICON,30V,150MA 
:SILICON,30V,150MA 
:SILICON,30V,150MA 
[SILICON, 30V,150MA 



SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE: SILICON, 50V, 3A 
SEMICOND DEVICE: SILICON, 55V, 200MA 
SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE:SILICON,30V,150MA 

[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 

: S ILICON , 30V , 150MA 
[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 
[SILICON, 30V, 150MA 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 

SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



SEMICOND DEVICE:SILICON,30V,150MA 



LAMP , GLOW : 90V , . 3MA 



72982 831-516E102P 

56289 196D685X0035KA1 

56289 196D685X0035KA1 

90201 TDC106M025FL 

90201 TDC106M025FL 

01295 G2017-1 

01295 G2017-1 

80009 152-0061-00 

80009 152-0061-00 

80009 152-0066-01 

80009 152-0400-00 

80009 152-0066-01 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

01295 G2017-1 

80009 152-0061-00 

07910 1N4152 

80009 152-0066-01 

80009 152-0040-00 

83003 H345 

83003 H345 

80009 152-0107-00 

14099 SA3282 

14099 SA3282 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

80009 152-0412-00 

80009 152-0333-00 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

08806 A1D-T 



5-18 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
Ckt No. Part No. Eft Dscont 



Name & Description 



Mfr 




Code 


Mfr Part Number 


08806 


A1D-T 


08806 


A1D-T 


08806 


A1D-T 


08806 


AlD-T 


08806 


A1D-T 


08806 


A1D-T 


08806 


A1D-T 


08806 


A1D-T 


08806 


A1D-T 


08806 


A1D-T 


76493 


8862-2 . 5 


80009 


108-0146-00 


80009 


108-0234-00 



DS2 


150-0035-00 


DS3 


150-0035-00 


DS4 


150-0035-00 


DS18 


150-0035-00 


DS27 


150-0035-00 


DS28 


150-0035-00 


DS31 


150-0035-00 


DS103 


150-0035-00 


DS104 


150-0035-00 


DS108 


150—0035-00 


L27 


108-0213-00 


L155 


108-0146-00 


L432 


108-0234-00 


Q29 


151-0311-01 


Q31 


151-0219-00 


841 


151-0150-00 


847 


151-0150-00 


084 


151-0134-00 


Q95 


151-0134-00 


8122 


151-0279-00 


Q123 


151-0124-00 


8143 


151-0311-01 


8162 


151-0219-00 


8165 


151-0311-01 


8186 


151-0136-00 


Q193 


151-0136-00 


8231 


151-0270-00 


8244 


151-0311-01 


8247 


151-0219-00 


8251 


151-0219-00 


8328 


151-1005-00 


8329 


151-0302-00 


Q338 


151-0223-00 


8354 


151-0190-00 


Q355 


151-0190-00 


8361 


151-0219-00 


8362 


151-0219-00 


8364 


151-0311-01 


8366 


151-0311-01 


8429 


151-0190-00 


8432 


151-0256-00 


8433 
Q459- 1 


151-0334-00 


151-0219-00 


Q473 


151-0190-00 


Q481 


151-0353-00 


8482 


151-0353-00 


8539 


151-0347-00 


8551 


151-0188-00 


8552 


151-0188-00 


8674 


151-0190-00 


R5 


315-0102-03 


R6 


315-0102-03 



IAMP,GLOW:90V,0. 3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP,GLOW:90V,0.3MA 
LAMP, GLOW: 90V, 0.3MA 
LAMP , GLOW : 90V , . 3MA 

LAMP , GLOW : 90V , . 3MA 
LAMP, GLOW: 90V, 0.3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP , GLOW s 90V .0= 3MA 

COIL,RF:2.5MH 

C0IL,RF:5UH 

COIL,RF:130UH 

TRANS ISTOR : S ILICON , NPN 
TRANS ISTOR : S ILICON , PNP 
TRANSISTOR : S ILICON , NPN 
TRANSISTOR:SILICON,NPN 
TRANS ISTOR : S ILICON , PNP 

TRANS ISTOR : S ILICON , PNP 
TRANS ISTOR : S ILICON , NPN 

TRANSISTOR:SILICON,NPN,SEL FROM 2N3501 
TRANSISTOR:SILICON,NPN 
TRANS ISTOR : S ILICON , PNP 



TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 



SILICON, NPN 
SILICON, NPN 
SILICON, NPN 
SILICON, PNP 
SILICON, NPN 



TRANS ISTOR : S ILICON , PNP 

TRANSISTOR: SILICON, PNP 

TRANS ISTOR : S ILICON , JFE , N-CHANNEL 

TRANS ISTOR: SILICON, NPN ( 

TRANS ISTOR : S ILICON , NPN ' 



TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 

TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 



SILICON, NPN 
SILICON, NPN 
SILICON, PNP 
SILICON, PNP 
SILICON, NPN 

SILICON, NPN 
SILICON, NPN 
SILICON, NPN 
SILICON, NPN 
SILICON, PNP 



TRANS ISTOR : S ILICON , NPN 
TRANSISTORrSILICON, NPN, DUAL MONOLITH 
TRANS ISTOR: SILICON, NPN, DUAL MONOLITH 
TRANS ISTOR : S ILICON , NPN 
TRANSISTOR:SILICON,PNP 

TRANSISTOR : SILICON, PNP 
TRANSISTOR : S ILICON , NPN 

RES.,FXD,CMPSN:1K OHM,5%,0.25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 



04713 MJE340 

80009 151-0219-00 

80009 151-0150-00 

80009 151-0150-00 

80009 151-0134-00 

80009 151-0134-00 

80009 151-0279-00 

80009 151-0124-00 

04713 MJE340 

80009 151-0219-00 



04713 


MJE340 




02735 


35495 




02735 


35495 




80009 


151-0270- 


-00 


04713 


MJE340 




80009 


151-0219- 


-00 


80009 


151-0219- 


-00 


80009 


151-1005- 


-00 


04713 


2N2222A 




80009 


151-0223- 


-00 


80009 


151-0190- 


-00 


80009 


151-0190- 


-00 


80009 


151-0219- 


-00 


80009 


151-0219- 


-00 


04713 


MJE340 




04713 


MJE340 




80009 


151-0190- 


-00 


80009 


151-0256- 


-00 


80009 


151-0334- 


-00 


80009 


151-0219- 


■00 


80009 


151-0190- 


-00 


32293 


ITS1251 




32293 


ITS1251 




80009 


151-0347- 


■00 


01295 


2N3906 




01295 


2N3906 




80009 


151-0190- 


■00 


01121 


CB1025 




01121 


CB1025 





Ion -01 boards and up only. 



4051 SERVICE VOL. 2 



5-19 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R13 


311-1312-00 


R18 


305-0125-00 


R19 


315-0222-00 


R21 


315-0202-00 


R25 


315-0100-02 


R26 


315-0103-03 


XV*. / 


315=0102-00 


R28 


322-0452-00 


R29 


315-0682-00 


R30 


308-0108-00 


R31 


315-0473-00 


R32 


315-0471-00 


R33 


321-0346-00 


R34 


321-0323-00 


R35 


321-0222-00 


R36 


311-1561-00 


R37 


305-0154-00 


R38 
R39 


315-0470-03 


315-0101-03 


R39 


315-0470-03 


R40 


315-0184-00 XB051 


R41 


305-0433-00 


R43 


303-0134-00 


R44 


303-0134-00 


R48 


303-0224-00 


R59 


315-0470-03 


R61 


315-0470-03 


R64 


305-0683-00 


R66 


315-0101-03 


R67 


315-0470-03 


R71 


303-0391-00 


R74 


307-0344-00 


R75 


303-0331-00 


R86 


315-0101-03 


R97 


315-0101-03 


R104 


301-0395-00 


R106 


301-0104-00 


R108 


301-0103-00 


R109 


315-0102-03 


R112 


307-0316-00 


R121 


315-0101-03 


R122 


301-0333-00 


R123 


315-0101-03 


R126 


315-0102-00 


R127 


315-0333-00 


R128 


322-0336-00 


R129 


311-1556-00 


R131 


321-0193-00 


R132 


323-0362-00 


R133 


305-0223-00 


R135 


315-0101-03 


R140 


315-0101-03 


R146 


315-0101-03 



RES. ,VAR,N0NWIR:5M OHM,20%,1W 
RES.,FXD,CMPSN:1.2M OHM,5%,2W 
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W 
RES.,FXD,CMPSN:2K OHM,5%,0.25W 
RES. ,FXD,CMPSN:10 OHM,5%,0.25W 

RES.,FXD,CMPSN:10K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM f 5% f 0.25W 
RES. ,FXD,FILM:499K OHM,1%,0.25W 
RES.,FXD,CMPSN:6.8K OHM,5%,0.25W 
RES. ,FXD,WW:15K OHM,5%,5W 

RES. ,FXD,CMPSN:47K OHM,5%,0.25W 
RES. ,FXD,CMPSN:470 OHM,5%,0.25W 
RES.,FXD,FILM:39.2K OHM,1%,0.125W 
RES. ,FXD,FILM:22.6K OHM,1%,0.125W 
RES. ,FXD,FILM:2K OHM,1%,0.125W 

RES.,VAR,NONWIR:2.5K OHM,20%,0.50W 
RES. ,FXD f CMPSN:150K OHM,5%,2W 
RES.,FXD,CMPSN:47 OHM,5%,0.25W 
RES. ,FXD,CMPSN:100 OHM,5%,0.25W 
RES.,FXD,CMPSN:47 OHM,5%,0.25W 

RES. ,FXD,CMPSN:180K OHM,5%,0.25W 
RES.,FXD,CMPSN:43K OHM,5%,2W 
RES.,FXD,CMPSN:130K 0HM,5%,1W 
RES. ,FXD,CMPSN:130K 0HM,5%,1W 
RES. ,FXD,CMPSN:220K OHM,5%,lW 

RES. ,FXD,CMPSN:47 OHM,5%,0.25W 
RES. ,FXD,CMPSN:47 OHM,5% f 0.25W 
RES. ,FXD,CMPSN:68K OHM,5%,2W 
RES. ,FXD,CMPSN:100 OHM,5%,0.25W 
RES. ,FXD,CMPSN:47 OHM,5%,0.25W 

RES. ,FXD,CMPSN:390 0HM,5%,1W 

RES. ,FXD,FILM:3 SECT, 1.5 OHM EA SECT 

RES.,FXD,CMPSN:330 OHM,5%,lW 

RES. ,FXD,CMPSN:100 OHM,5%,0.25W 

RES.,FXD,CMPSN:100 OHM,5%,0.25W 

RES. ,FXD,CMPSN:3.9M OHM,5%,0.50W 
RES. ,FXD,CMPSN:100K OHM,5%,0.5W 
RES.,FXD,CMPSN:10K OHM,5%,0.50W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD, FILM: 15M OHM 

RES. ,FXD,CMPSN:100 OHM,5%,0.25W 
RES. ,FXD,CMPSN:33K OHM,5%,0.50W 
RES. ,FXD,CMPSN:100 OHM,5%,0.25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 
RES.,FXD,CMPSN:33K OHM,5%,0.25W 

RES.,FXD,FILM:30.9K OHM,1%,0.25W 
RES.,VAR,NONWIR:50K OHM,20%,0.50W 
RES.,FXD,FILM:1K OHM,1%,0.125W 
RES.,FXD,FILM:57.6K OHM,1%,0.50W 
RES.,FXD,CMPSN:22K OHM,5%,2W 

RES.,FXD,CMPSN:100 OHM,5%,0.25W 
RES.,FXD,CMPSN:100 OHM,5%,0.25W 
RES. ,FXD,CMPSN:100 OHM,5%,0.25W 



01121 10M586 

01121 HB1255 

01121 CB2225 

01121 CB2025 

01121 CB1005 

01121 CB1035 

01121 CB1025 

91637 MFF1421G49902F 

01121 CB6825 

91637 RS5-B15001J 

01121 CB4735 

01121 CB4715 

91637 MFF1816G39201F 

91637 MFF1816G22601F 

91637 MFF1816G20000F 

73138 91A R2500 

01121 HB1545 

01121 CB4705 

01121 CB1015 

01121 CB4705 

01121 CB1845 

01121 HB4335 

01121 GB1345 

01121 GB1345 

01121 GB2245 

01121 CB4705 

01121 CB4705 

01121 HB6835 

01121 CB1015 

01121 CB4705 

01121 GB3915 

80009 307-0344-00 

01121 GB3315 

01121 CB1015 

01121 CB1015 

01121 EB3955 

01121 EB1045 

01121 EB1035 

01121 CB1025 

80009 307-0316-00 

01121 CB1015 

01121 EB3335 

01121 CB1015 

01121 CB1025 

01121 CB3335 

75042 CEBT0-3092F 

73138 91A R50K 

91637 MFF1816G10000F 

75042 CECT0-5762F 

01121 HB2235 

01121 CB1015 

01121 CB1015 

01121 CB1015 



On -01 and -02 boards. 



5-20 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eft EJscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R148 


322-0452-00 


R149 


315-0101-03 


R152 


315-0102-00 


R153 


315-0100-02 


R154 


315-0102-00 


R159 


323-0398-00 


R167 


305-0124-00 


R168 


315-0101-03 


R169 


305-0154-00 


R176 


321-0214-00 


R178 


321-0214-00 


R189 


315-0100-02 


R190 


315-0100-02 


R191 


315-0511-00 


R192 


315-0511-00 


R196 


301-0472-00 


R198 


321-0253-00 


R199 


315-0222-00 


R208 


301-0101-00 


R209 


301-0101-00 


R212 


307-0314-00 


R221 


315-0100-02 


R223 


321-0452-00 


R224 


311-1556-00 


R227 


315-0681-00 


R228 


315-0102-00 


R229 


315-0100-02 


R235 


322-0338-00 


R236 


321-0289-00 


R237 


306-0272-00 


R242 


301-0103-00 


R244 


315-0682-00 


R246 


315-0101-03 


R248 


311-1228-00 


R249 


315-0101-03 


R252 


311-1559-00 


R253 


315-0272-00 


R254 


315-0471-00 


R255 


315-0103-00 


R257 


315-0103-00 


R260 


321-0260-00 


R261 


321-0294-00 


R262 


321-0353-00 


R263 


315-0101-03 


R264 


315-0682-00 


R267 


315-0101-03 


R270 


311-1731-00 


R271 


311-1560-00 


R272 


311-1731-00 


R273 


311-1560-00 


R280 


321-0387-00 


R281 


321-0328-00 


R282 


321-0318-00 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 

RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 

RES. 



FXD,FILM:499K OHM,1%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,FILM:137K OHM,1%,0.50W 
FXD,CMPSN:120K OHM,5%,2W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:150K OHM,5%,2W 
FXD, FILM :1.65K OHM,1%,0.125W 

FXD,FILM:1.65K OHM,1%,0.125W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:10 OHM f 5%,0.25W 
FXD,CMPSN:510 OHM,5%,0.25W 
FXD,CMPSN:510 OHM,5%,0.25W 

FXD,CMPSN:4.7K OHM,5%,0.50W 
FXD,FILM:4.22K OHM,1%,0.125W 
FXD,CMPSN:2.2K OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.50W 
FXD,CMPSN:100 OHM,5%,0.50W 

FXD, FILM: VOLTAGE DIVIDE 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,FILM:499K OHM,1%,0.125W 
VAR,NONWIR:50K OHM,20%,0.50W 
FXD,CMPSN:680 OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,FILM:32.4K OHM,1%,0.25W 
FXD,FILM:10K OHM,1%,0.125W 
FXD,CMPSN:2.7K OHM,10%,2W 

FXD,CMPSN:10K OHM,5%,0.50W 
FXD,CMPSN:6.8K OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
VAR,NONWIR:10K OHM,20%,0.50W 
FXD,CMPSN:100 OHM,5%,0.25W 

VAR,NONWIR:10K OHM,20%,0.50W 
FXD,CMPSN:2.7K OHM,5%,0.25W 
FXD,CMPSN;470 OHM,5%,0,25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 

FXD,FILM:4.99K OHM,1%,0.125W 
FXD,FILM:11.3K OHM,1%,0.125W 
FXD, FILM :46.4K OHM,1%,0. 125W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:6.8K OHM,5%,0.25W 

FXD,CMPSN:100 OHM,5%,0.25W 
VAR,NONWIR:20 OHM,0.5W 
VAR,NONWIR:5K OHM,5%,0.50W 
VAR,NONWIR:20 OHM,0.5W 
VAR,NONWIR:5K OHM,5%,0.50W 

FXD,FILM:105K OHM,1%,0.125W 
FXD,FILM:25.5K OHM,1%,0.125W 
FXD,FILM:20K OHM,1%,0.125W 



91637 MFF1421G49902F 

01121 CB1015 

01121 CB1025 

01121 CB1005 

01121 CB1025 

91637 MFF1226G13702F 

01121 HB1245 

01121 CB1015 

01121 HB1545 

91537 MFF1816G165QQF 

91637 MFF1816G16500F 

01121 CB1005 

01121 CB1005 

01121 CB5115 

01121 CB5115 

01121 EB4725 

91637 MFF1816G42200F 

01121 CB2225 

01121 EB1015 

01121 EB1015 



80009 


307-0314-00 


01121 


CB1005 


91637 


MFF1816G49902F 


73138 


91A R50K 


01121 


CB6815 


01121 


CB1025 


01121 


CB1005 


75042 


CEBT0-3242F 


91637 


MFF1816G10001F 


01121 


HB2721 


01121 


EB1035 


01121 


CB6825 


01121 


CB1015 


32997 


3386F-T04-103 


01121 


CB1015 


73138 


91A-10001M 


01121 


CB2725 


01121 


CB4715 


01121 


CB1035 


01121 


CB1035 


91637 


MFF1816G49900F 


91637 


MFF1816G11301F 


91637 


MFF1816G46401F 


01121 


CB1015 


01121 


CB6825 


01121 


CB1015 


73138 


91A-20R00M 


73138 


91A-50000M 


73138 


91A-20R00M 


73138 


91A-50000M 


91637 


MFF1816G10502F 


91637 


MFF1816G25501F 


91637 


MFF1816G20001F 



4051 SERVICE VOL. 2 



5-21 



REPLACEABLE ELECTRICAL PARTS-4051 



Tektronix Serial/Model No. 
CktNo. Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R284 


321-0214-00 


R286 


321-0318-00 


R287 


321-0318-00 


R289 


321-0387-00 


R290 


321-0328-00 


R291 


321-0318-00 


R292 


321-0214-00 


R293 


321-0317-00 


R294 


321-0318-00 


R295 


321-0306-00 


R297 


321-0253-00 


R298 


321-0253-00 


R299 


321-0253-00 


R321 


315-0224-00 


R322 


315-0824-00 


R323 


315-0824-00 


R324 


315-0104-00 


R326 


315-0822-00 


R329 


315-0222-00 


R330 


315-0221-00 


R331 


315-0152-00 


R332 


315-0221-00 


R333 


315-0471-00 


R334 


315-0301-00 


R335 


315-0100-02 


R336 


315-0102-00 


R339 


315-0470-03 


R341 


323-0396-00 


R342 


321-0269-00 


R343 


315-0102-00 


R344 


315-0472-00 


R345 


315-0222-00 


R346 


321-0316-00 


R347 


321-0309-00 


R348 


321-0289-00 


R351 


315-0101-03 


R352 


321-0385-00 


R356 


315-0471-00 


R357 
R358 1 


315-0471-00 


315-0103-03 


R359 


311-1228-00 


R360 


321-0260-00 


R361 


321-0260-00 


R369 


315-0105-00 


R374 


321-0289-00 


R375 


321-0193-00 


R376 


321-0301-00 


R377 


321-0301-00 


R382 


321-0280-00 


R384 


321-0306-00 


R390 


321-0309-00 


R391 


321-0309-00 


R392 


311-1567-00 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



FXD,FILM:1.65K OHM,1%,0.125W 
FXD,PILM:20K OHM,1%,0.125W 
FXD,FILM:20K OHM,1%,0.125W 
FXD,FILM:105K OHM,1%,0.125W 
FXD,FILM:25.5K OHM,1%,0.125W 

FXD,FILM:20K OHM,1%,0.125W 
FXD,FILM:1.65K OHM,1%,0.125W 
FXD,FILM:19.6K OHM,1%,0.125W 
FXD,FILM:20K OHM,1%,0.125W 
FXD,FILM:15K OHM,1%,0.125W 

FXD f FILM:4.22K OHM,1%,0.125W 
FXD,FILM:4.22K OHM,1%,0.125W 
FXD,FILM:4.22K OHM,1%,0.125W 
FXD,CMPSN:220K OHM,5%,0.25W 
FXD,CMPSN:820K OHM,5%,0.25W 

FXD,CMPSN:820K OHM,5%,0.25W 
FXD,CMPSN:100K OHM,5%,0.25W 
FXD,CMPSN:8.2K OHM,5%,0.25W 
FXD,CMPSN:2.2K OHM,5%,0.25W 
FXD,CMPSN:220 OHM,5%,0.25W 

FXD,CMPSN:1.5K OHM,5%,0.25W 
FXD,CMPSN:220 OHM,5%,0.25W 
FXD,CMPSN:470 OHM,5%,0.25W 
FXD,CMPSN:300 OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:47 OHM,5%,0.25W 
FXD,FIIM:130K OHM,1%,0.50W 
FXD,FILM:6.19K OHM,1%,0.125W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:2.2K OHM,5%,0.25W 
FXD,FILM:19.1K OHM,1%,0.125W 
FXD,FILM:16.2K OHM,1%,0.125W 
FXD,FILM:10K OHM,1%,0.125W 

FXD,CMPSN:100 OHM,5%,0.25W 
FXD,FILM:100K OHM,1%,0.125W 
FXD,CMPSN:470 OHM,5%,0.25W 
FXD f CMPSN:470 OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 

VAR,NONWIR:10K OHM,20%,0.50W 
FXD,FILM:4.99K OHM,l% f 0.125W 
FXD,FILM:4.99K OHM,1%,0.125W 
FXD,CMPSN:1M OHM,5%,0.25W 
FXD,FILM:10K OHM,1%,0.125W 

FXD,FILM:1K OHM,1%,0.125W 
FXD,FILM:13.3K OHM,1%,0.125W 
FXD,FILM:13.3K OHM,1%,0.125W 
FXD,FILM:8.06K OHM,1%,0.125W 
FXD,FILM:15K OHM,1%,0.125W 

FXD,FILM:16.2K OHM,1%,0.125W 
FXD,FILM:16.2K OHM,1%,0.125W 
VAR,NONWIR:100 OHM,20%,0.50W 



91637 
91637 
91637 
91637 
91637 

91637 
91637 
91637 
91637 
91637 

91637 
91637 
91637 
01121 
01121 

01121 
01121 
01121 
01121 
01121 

01121 
01121 
01121 
01121 
01121 

01121 
01121 
75042 
91637 
01121 

01121 
01121 
91637 
91637 
91637 

01121 
91637 
01121 
01121 
01121 

32997 
91637 
91637 
01121 
91637 

91637 
91637 
91637 
91637 
91637 

91637 
91637 
73138 



MFF1816G16500F 
MFF1816G20001F 
MFF1816G20001F 
MFF1816G10502F 
MFF1816G25501F 

MFF1816G20001F 
MFF1816G16500F 
MFF1816G19601F 
MFF1816G20001F 
MFF1816G15001F 

MFF1816G42200F 

MFF1816G42200F 

MFF1816G42200F 

CB2245 

CB8245 

CB8245 
CB1045 
CB8225 
CB2225 
CB2215 

CB1525 
CB2215 
CB4715 
CB3015 
CB1005 

CB1025 

CB4705 

CECT0-1303F 

MFF1816G61900F 

CB1025 

CB4725 

CB2225 

MFF1816G19101F 

MFF1816G16201F 

MFF1816G10001F 

CB1015 

MFF1816G10002F 

CB4715 

CB4715 

CB1035 

3386F-T04-103 

MFF1816G49900F 

MFF1816G49900F 

CB1055 

MFF1816G10001F 

MFF1816G10000F 
MFF1816G13301F 
MFF1816G13301F 
MFF1816G80600F 
MFF1816G15001F 

MFF1816G16201F 
MFF1816G16201F 
91A-100R0M 



^■On -01 boards and up. 



5-22 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS-4051 



Tektronix Serial/Model No. 
Ckt No. Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R393 


311-1567-00 


R398 


321-0306-00 


R427 


315-0103-00 


R428 


315-0122-00 


R429 


315-0272-00 


R430 


315-0101-03 


R432 


315-0272-00 


R433 


308-0244-00 


R434 


308-0244-00 






R436 


315-0472-00 


R438 


315-0100-02 


R439 


315-0100-02 


R443 


321-0280-00 


R444 


321-0274-00 


R446 


315-0335-00 


R447 


315-0102-00 


R448 


315-0152-00 


R449 


315-0154-00 


R450 


315-0103-00 


R451 


315-0473-00 


R452 


315-0103-00 


R453 


315-0472-00 


R454 


315-0472-00 


R455 


315-0102-00 


R456 
R457, 


315-0102-00 


315-0102-03 


R458 x 


315-0102-03 


R459 


321-0315-00 


R460 


315-0102-00 


R461 


315-0182-00 


R462 


315-0103-00 


R463 


315-0103-00 


R464 


315-0182-00 


R465 


315-0102-00 


R466 


315-0102-00 


R467 


315-0103-00 


R468 


321-0339-00 


R472 


315-0102-00 


R473 


315-0103-00 


R477 


321-0253-00 


R478 


321-0253-00 


R482 


315-0470-03 


R483 


321-0289-00 


R485 


321-0309-00 


R491 


315-0470-03 


R492 


321-0301-00 


R493 


321-0318-00 


R494 


321-0318-00 


R495 


321-0321-00 


R498 


321-0402-00 


R544 


307-0103-00 


R545 


307-0103-00 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES, 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



VAR,NONWIR:100 OHM,20%,0.50W 
FXD,FILM:15K OHM,1%,0.125W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:1.2K OHM,5%,0.25W 
FXD,CMPSN:2.7K OHM,5%,0.25W 

FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:2.7K OHM,5%,0.25W 
FXD,WW:0.3 OHM,10%,2W 
FXD,WW:0.3 OHM,10%,2W 
FXD,CMPSN:2.7 OKM,5%,0.25W 

FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,FILM:8.06K OHM,1%,0.125W 
FXD,FII24:6.98K OHM,l%, 0.125W 

FXD,CMPSN:3.3M OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:1.5K OHM,5%,0.25W 
FXD,CMPSN:150K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 

FXD,CMPSN:47K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0,25W 
FXD,CMPSN:1K OHM,5% f 0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,FILM:18.7K OHM,1%,0.125W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,CMPSN:1.8K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:1.8K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,FILM:33.2K OHM,1%.0.125W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 

FXD,FILM:4.22K OHM,1%,0.125W 
FXD,FILM:4.22K OHM,1%,0.125W 
FXD,CMPSN:47 OHM,5%,0.25W 
FXD,FILM:10K OHM,1%,0.125W 
FXD,FILM:16.2K OHM,1%,0.125W 

FXD,CMPSN:47 OHM,5%,0.25W 
FXD,FILM:13.3K OHM,1%,0.125W 
FXD,FILM:20K OHM,1%,0. 125W 
FXD,FILM:20K OHM,1%,0.125W 
FXD,FILM:21.5K OHM,1%,0.125W 

FXD f FILM:150K OHM,1%,0.125W 
FXD,CMPSN:2.7 OHM,5%,0.25W 
FXD,CMPSN:2.7 OHM,5%,0.25W 



73138 91A-100R0M 

91637 MFF1816G15001F 

01121 CB1035 

01121 CB1225 

01121 CB2725 

01121 CB1015 

01121 CB2725 

91637 RS2B162ER3000K 

91637 RS2B162ER3000K 

01121 CB27G5 

01121 CB4725 

01121 CB1005 

01121 CB1005 

91637 MFF1816G80600F 

91637 MFF1816G69800F 

01121 CB3355 

01121 CB1025 

01121 CB1525 

01121 CB1545 

01121 CB1035 



01121 


CB4735 


01121 


CB1035 


01121 


CB4725 


01121 


CB4725 


01121 


CB1025 


01121 


CB1025 


01121 


CB1025 


01121 


CB1025 


91637 


MFF1816G18701F 


01121 


CB1025 


01121 


CB1825 


01121 


CB1035 


01121 


CB1035 


01121 


CB1825 


01121 


CB1025 


01121 


CB1025 


01121 


CB1035 


91637 


MFF1816G33201F 


01121 


CB1025 


01121 


CB1035 


91637 


MFF1816G42200F 


91637 


MFF1816G42200F 


01121 


CB4705 


91637 


MFF1816G10001F 


91637 


MFF1816G16201F 


01121 


CB4705 


91637 


MFF1816G13301F 


91637 


MFF1816G20001F 


91637 


MFF1816G20001F 


91637 


MFF1816G21501F 


91637 


MFF1816G15002F 


01121 


CB27G5 


01121 


CB27G5 



^On -01 boards and up. 



4051 SERVICE VOL. 2 



5-23 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R546 


315-0102-00 


R547 


315-0472-00 


R548. 
R551 


315-0273-00 


315-0103-00 


R572 


321-0289-00 


R573 


321-0288-00 


R574 


321-0289-00 


R576 


321-0289-00 


R578 


321-0346-00 


R581 


321-0289-00 


R582 


321-0289-00 


R583 


321-0348-00 


R585 


321-0339-00 


R587 


321-0289-00 


R588 


321-0289-00 


R591 


321-0402-00 


R592 


321-0318-00 


R594 


321-0402-00 


R595 


321-0289-00 


R597 


321-0402-00 


R598 


321-0289-00 


R599 


321-0318-00 


R651 


315-0102-00 


R652 


315-0471-00 


R654 


315-0472-00 


R655 


315-0102-00 


R656 


315-0472-00 


R657 


315-0272-00 


R658 


315-0272-00 


R659 


321-0247-00 


R660 2 


315-0102-00 


R661 


315-0472-00 


R662 


315-0101-03 


R663 


315-0472-00 


R670 


307-0103-00 


R672 


307-0103-00 


R673 


315-0102-00 


R678 


321-0346-00 


R679 


321-0289-00 


R681 


321-0289-00 


R682 


321-0348-00 


R686 


311-1554-00 


R687 


311-1555-00 


R688 


315-0102-00 


R691 


311-1554-00 


R693 


321-0270-00 


R694 


321-0385-00 


R695 


311-1555-00 


R696 


315-0912-00 


R697 


315-0912-00 


R698 


315-0471-00 


R699 


315-0471-00 


R772 


321-0289-00 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



PXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:27K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,FILM:10K OHM,1%,0.125W 

FXD,FILM:9.76K OHM,1%,0.125W 
FXD,FILM:10K OHM,1%,0.125W 
FXD,FILM:10K OHM, 1%,0.125W 
FXD,FILM:39.2K OHM,1%,0.125W 
FXD,FILM:10K OHM,1%,0.125W 

FXD,FILM:10K OHM,1%,0.125W 
FXD,FILM:41.2K OHM,1%,0.125W 
FXD,FILM:33.2K OHM,l%, 0.125W 
FXD,FILM:10K OHM,1%,0.125W 
FXD,FILM:10K OHM,1%,0.125W 

FXD,FILM:150K OHM,1%,0.125W 
FXD,FILM:20K OHM,1%,0.125W 
FXD,FILM:150K OHM,l%, 0.125W 
FXD,FILM:10K OHM, 1%, 0.125ft 
FXD,FILM:150K OHM,1%,0.125W 

FXD,FILM:10K OHM,1%,0.125W 
FXD,FILM:20K OHM,1%,0.125W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:470 OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:2.7K OHM,5%,0.25W 
FXD,CMPSN:2.7K OHM,5%,0.25W 
FXD,FILM:3.65K OHM,1%,0.125W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:2.7 OHM,5%,0.25W 

FXD,CMPSN:2.7 OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,FILM:39.2K OHM,1%,0.125W 
FXD,FIIW:10K OHM,1%,0.125W 
FXD,FILM:10K OHM,1%,0.125W 

FXD,FILM:41.2K OHM,1%,0.125W 
VAR,NONWIR:200K OHM,20%,0.50W 
VAR,NONWIR:100K OHM,20%,0.5W 
FXD,CMPSN:1K OHM,5%,0.25W 
VAR,NONWIR:200K OHM,20%,0.50W 

FXD,FILM:6.34K OHM,1%,0.125W 
FXD,FILM:100K OHM,1%,0.125W 
VAR,NONWIR:100K OHM,20%,0.5W 
FXD,CMPSN:9.1K OHM,5%,0.25W 
FXD,CMPSN:9.1K OHM,5%,0.25W 

FXD,CMPSN:470 OHM,5%,0.25W 
FXD,CMPSN:470 OHM,5%,0.25W 
FXD,FILM;10K OHM,l%, 0. 125W 



01121 
01121 
01121 
01121 
91637 

91637 
91637 
91637 
91637 
91637 

91637 
91637 
91637 
91637 
91637 

91637 
91637 
91637 
91637 
91637 

91637 
91637 
01121 
01121 
01121 

01121 
01121 
01121 
01121 
91637 

01121 
01121 
01121 
01121 
01121 

01121 
01121 
91637 
91637 
91637 

91637 
73138 
73138 
01121 
73138 

91637 
91637 
73138 
01121 
01121 

01121 
01121 
91637 



CB1025 
CB4725 
CB2735 
CB1035 
MFF1816G10001F 

MFF1816G97600F 
MFF1816G10001F 
MFF1816G10001F 
MFF1816G39201F 
MFF1816G10001F 

MFF1816G10001F 
MFF1816G41201F 
MFF1816G33201F 
MFF1816G10001F 
MFF1816G10001F 

MFF1816G15002F 
MFF1816G20001F 
MFF1816G15002F 
MFF1816G10001F 
MFF1816G15002F 

MFF1816G10001F 

MFF1816G20001F 

CB1025 

CB4715 

CB4725 

CB1025 
CB4725 
CB2725 
CB2725 
MFF1816G36500F 

CB1025 
CB4725 
CB1015 
CB4725 
CB27G5 

CB27G5 

CB1025 

MFF1816G39201F 

MFF1816G10001F 

MFF1816G10001F 

MFF1816G41201F 
91A R200K 
91A R100K 
CB1025 
91A R200K 

MFF1816G63400F 
MFF1816G10002F 
91A R100K 
CB9125 
CB9125 

CB4715 
CB4715 
MFF1816G10001F 



^On -00 and -01 boards only. 
2 
On -00 boards only. 



5-24 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Mode! No. 
Ckt No. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R773 


321-0288-00 


R774 


321-0289-00 


R776 


321-0289-00 


R778 


321-0339-00 


R782 


321-0289-00 


R783 


321-0289-00 


R786 


321-0270-00 


R787 


321-0385-00 


DIOI 


"51 C_Q1 Q3_QQ 


R793 


315-0183-00 


R794 


315-0471-00 


R795 


315-0393-00 


R796 


315-0393-00 


R797 


321-0134-00 


R798 


321-0134-00 


T154 


120-1026-00 


T314 


120-1028-00 


U155 


156-0162-00 


U184 


156-0158-00 


U255 


156-0096-00 


U296 


156-0048-00 


U381 


156-0158-00 


U445 


156-0067-00 


U496 


156-0158-00 


U552 


156-0145-00 


U555 


156-0093-00 


U557 


156-0706-00 


U561 


156-0093-00 


U566 


156-0706-00 


U577 


156-0158-00 


U777 


156-0158-00 


U791 


156-0032-00 


VR196 


152-0195-00 


VR265 


152-0394-00 


VR266 


152-0087-00 


VR358 


152-0278-00 



RES. ,FXD,FILM:9.76K OHM, 1%, 0. 125W 
RES. ,FXD, FILM: 10K 0HM,1% ,0. 125W 
RES.,FXD,FILM:10K OHM,1%,0. 125W 
RES. ,FXD,FILM:33.2K OHM,1%,0. 125W 
RES.,FXD,FILM:10K OHM,1%,0.125W 

RES. ,FXD,FILM:10K 0HM,1% ,0. 125W 
RES. ,FXD,FILM:6.34K 0HM,1% ,0. 125W 
RES. ,FXD, FILM: 100K OHM,1%,0. 125W 
RES FXD CMPSN:18K OHM 5% 25W 
RES. ,FXD,CMPSN:18K OHM,5%,0.25W 

RES.,FXD,CMPSN:470 OHM,5%,0.25W 
RES. ,FXD,CMPSN:39K OHM,5%,0.25W 
RES. ,FXD,CMPSN:39K OHM,5%,0.25W 
RES. ,FXD,FILM:243 0HM,1% ,0.125W 
RES. ,FXD,FILM:243 OHM,1%,0.125W 

XFMR,RF:T0R0ID,2 WINDINGS 
XFMR,PWR,SDN&SU:HIGH VOLTAGE 

MICROCIRCUIT, LI DIFFERENTIAL VIDEO AMPL 
MICROCIRCUIT,LI:DUAL OPERATIONAL AMPLIFIER 
MICROCIRCUIT , LI : VOLTAGE COMPARATOR 
MICROCIRCUIT, LI: FIVE NPN TRANSISTOR ARRAY 
MICROCIRCUIT, LI :DUAL OPERATIONAL AMPLIFIER 

MICROCIRCUIT, LI OPERATIONAL AMPLIFIER 
MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 
MICROCIRCUIT, DI: QUAD 2-INPUT POS NAND BFR 
MICROCIRCUIT, DI :HEX. INVERTER 
MICROCIRCUIT, DI: DUAL MONOSTABLE MV 

MICROCIRCUIT , DI : HEX . INVERTER 
MICROCIRCUIT, DI: DUAL MONOSTABLE MV 
MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 
MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 
MICROCIRCUIT, DI:4-BIT BINARY COUNTER 

SEMICOND DEVICE:ZENER,0.4W,5.1V,5% 
SEMICOND DEVICE:ZENER,1W,47V,5% 
SEMICOND DEVICE :ZENER,1W,100V, 5% 
SEMICOND DEVICE:ZENER,0.4W,3V,5% 



91637 
91637 
91637 
91637 
91637 



MFF1816G97600F 
MFF1816G10001F 
MFF1816G10001F 
MFF1816G33201F 
MFF1816G10001F 



91637 MFF1816G10001F 

91637 MFF1816G63400F 

91637 MFF1816G10002F 

m l oi r-Tji oic 

01121 CB1835 

01121 CB4715 

01121 CB3935 

01121 CB3935 

91637 MFF1816G243R0F 

91637 MFF1816G243R0F 



80009 


120-1026- 


-00 


80009 


120-1028- 


-00 


80009 


156-0162- 


-00 


80009 


156-0158- 


-00 


27014 


LM311H 




02735 


CA3046 




80009 


156-0158- 


-00 


80009 


156-0067- 


-00 


80009 


156-0158- 


-00 


01295 


SN7438N 




01295 


SN7416N 




01295 


SN74221N 




01295 


SN7416N 




01295 


SN74221N 




80009 


156-0158- 


-00 


80009 


156-0158- 


-00 


01295 


SN7493AN 




80009 
81483 


152-0195- 
1N3036B 


-00 


04713 


SZ1627 




07910 


1N4372A 





A4 CKT BOARD ASSY: DISPLAY 
(672-0546-05 S UP) 



Cll 


283-0033-00 


C12 


283-0101-00 


C23 


283-0008-00 


C25 


283-0008-00 


C29 


281-0523-00 


C44 


283-0068-00 


C62 


281-0550-00 


C64 


283-0068-00 


C86 


283-0092-00 



CAP. ,FXD,CER DI:0.001UF, 6000V 
CAP. ,FXD,CER DI:4700PF, +80-20%, 6000V 
CAP.,FXD,CER DI:0.1UF,500V 
CAP.,FXD,CER DI:0.1UF,500V 
CAP.,FXD,CER DI:100PF,+/-20PF,500V 

CAP. ,FXD,CER DI:0.01UF, +100-0%, 500V 
CAP. ,FXD,CER DI:120PF,10%,500V 
CAP. ,FXD,CER DI:0.01UF, +100-0%, 500V 
CAP. ,FXD,CER DI:0.03UF, +80-20%, 200V 



72982 3906BW200E102P 

56289 45C11A 

56289 275C8 

56289 275C8 

72982 301-000U2M0101M 

56289 19C241 

04222 7001-1373 

56289 19C241 

72982 845-534E303Z 



4051 SERVICE VOL. 2 



5-25 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial /Model No. 
Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



C96 


283-0092-00 


C110 


283-0101-00 


C113 


283-0101-00 


C136 


283-0008-00 


C147 


283-0068-00 


C148 


281-0523-00 


C151 


283-0177-00 


C158 


283-0008-00 


C159 


283-0008-00 


C175 


281-0605-00 


C177 


281-0605-00 


C189 


283-0068-00 


C190 


283-0068-00 


C196 


290-0525-00 


C213 


283-0291-00 


C214 


283-0162-00 


C215 


283-0101-00 


C222 


283-0177-00 


C228 


283-0068-00 


C232 


283-0068-00 


C243 


283-0000-00 


C244 


283-0068-00 


C255 


281-0623-00 


C257 


281-0623-00 


C258 


283-0177-00 


C259 


283-0177-00 


C286 


281-0605-00 


C291 


281-0605-00 


C311 


283-0021-00 


C312 


283-0021-00 


C325 


283-0067-00 


C333 


281-0525-00 


C334 


283-0177-00 


C342 


281-0504-00 


C343 


281-0604-00 


C353 


290-0301-00 


C363 


283-0000-00 


C364 


283-0000-00 


C370 


290-0260-00 


C427 


283-0067-00 


C432 


283-0177-00 


C435 


290-0316-00 


C437 


283-0111-00 


C439 


283-0111-00 


C459 


290-0534-00 


C466 


281-0549-00 


C468 


290-0297-00 


C545 


283-0081-00 


C650 


283-0177-00 


C659 


281-0622-00 



CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 

CAP. 
CAP. 
CAP. 
CAP. 
CAP. 



FXD,CER DI:0.03UF, +80-20%, 200V 
FXD,CER DI:4700PF, +80-20%, 6000V 
FXD,CER DI:4700PF, +80-20%, 6000V 
FXD,CER DI:0.1UF,500V 
FXD,CER DI:0.01UF, +100-0%, 500V 

£ Au ,v»r,is. uiiiuuri; / T/-iurr,juuv 

FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:0.1UF,500V 
FXD,CER DI:0.1UF,500V 
FXD,CER DI:200PF,10%,500V 

FXD,CER DI:200PF,10%,500V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,ELCTLT:4 . 7UF, 20% , 50V 
FXD,CER DI:25PF,10%,6000V 

FXD,CER DI:0.01UF, +80-30%, 5000V 
FXD,CER DI:4700PF, +80-20%, 6000V 
FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,CER DI:0.01UF, +100-0%, 500V 

FXD,CER DI:0.001UF, +100-0%, 500V 
FXD,CER DI:0.01UF, +100-0%, 500V 
FXD,CER DI:650PF,5%,500V 
FXD,CER DI:650PF,5%,500V 
FXD,CER DI:1UF, +80-20%, 25V 

FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:200PF, 10% ,500V 
FXD,CER DI:200PF,10%,500V 
FXD,CER DI:0.001UF, 20%, 5000V 
FXD,CER DI:0.001UF, 20%, 5000V 

FXD,CER DI:0.001UF,10%,200V 
FXD,CER DI:470PF,+/-94PF,500V 
FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:10PF,+/-1PF,500V 
FXD,CER DI:2.2PF,+/-0.25PF,500V 

FXD,ELCTLT: 10UF , 10% , 20V 
FXD,CER DI:0.001UF, +100-0%, 500V 
FXD,CER DI:0.001UF, +100-0%, 500V 
FXD,ELCTLT:50UF, +75-10%, 200V 
FXD,CER DI:0.001UF,10%,200V 

FXD,CER DI:1UF, +80-20%, 25V 
FXD,ELCTLT:47UF,20%,35V 
FXD,CER DI:0.1UF,20%,50V 
FXD,CER DI:0.1UF,20%,50V 
FXD,ELCTLT : 1UF, 20% , 35V 

FXD,CER DI:68PF,10%,500V 
FXD,ELCTLT:39UF,10%,10V 
FXD,CER DI:0.1UF, +80-20%, 25V 
FXD,CER DI:1UF, +80-20%, 25V 
FXD,CER DI:47PF,1%,500V 



72982 845-534E303Z 

56289 45C11A 

56289 45C11A 

56289 275C8 

56289 19C241 

72982 301-000U2M0101M 

72982 8131N039 E 105Z 

56289 275C8 

56289 275C8 

04222 7001-1375 



04222 


7001-1375 


56289 


19C241 


56289 


19C241 


56289 


196D475X0050KA1 


56289 


41C426 


56289 


112C403 


56289 


45C11A 


72982 


8131N039 E 105Z 


56289 


19C241 


56289 


19C241 


72982 


831-516E102P 


56289 


19C241 


04222 


7001-1362 


04222 


7001-1362 


72982 


8131N039 E 105Z 


72982 


8131N039 E 105Z 


04222 


7001-1375 


04222 


7001-1375 


72982 


848-556-Y5S-102M 


72982 


848-556-Y5S-102M 


72982 


835-515B102K 


04222 


7001-1364 


72982 


8131N039 E 105Z 


72982 


301-055C0G0100F 


72982 


301-000C0J0229C 


56289 


15OD106X9020B2 


72982 


831-516E102P 


72982 


831-516E102P 


56289 


34D506G200GL4 


72982 


835-515B102K 


72982 


8131N039 E 105Z 


56289 


150D476X0035S2 


72982 


8121-N088Z5U104M 


72982 


8121-N088Z5U104M 


56289 


196D105X0035HA1 



72982 301-000U2J0680K 

56289 150D396X9010B2 

56289 36C600 

72982 8131N039 E 105Z 

72982 308-000C0G0470F 



5-26 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No, 
Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



C664 


283-0000-00 


C668 


290-0517-00 


C669 


290-0517-00 


C67I 


290-0536-00 


C672 


290-0536-00 


CR4 


152-0426-00 


CR20 


152-0426-00 


CR21 


152-0061-00 


CR22 


152-0061-00 


CR23 


152-0066-01 


CR24 


152-0400-00 


CR29 


152-0141-02 


CR40 


152-0066-01 


CR45 


152-0141-02 


CR59 


152-0141-02 


CR67 


152-0141-02 


CR81 


152-0141-02 


CR82 


152-0141-02 


CR91 


152-0141-02 


CR92 


152-0141-02 


CR103 


152-0426-00 


CR121 


152-0061-00 


CR122 


152-0141-02 


CR128 


152-0066-01 


CR169 


152-0040-00 


CR203 


152-0408-00 


CR204 


152-0408-00 


CR264 


152-0107-00 


CR311 


152-0429-00 


CR312 


152-0429-00 


CR328 


152-0141-02 


CR329 


152-0141-02 


CR350 


152-0141-02 


CR429 


152-0412-00 


r^DA TO 


1 C 2-Q333— 00 


CR450 


152-0141-02 


CR545 


152-0141-02 


DS1 


150-0035-00 


DS2 


150-0035-00 


DS3 


150-0035-00 


DS4 


150-0035-00 


DS18 


150-0035-00 


DS27 


150-0035-00 


DS28 


150-0035-00 


DS31 


150-0035-00 


DS103 


150-0035-00 


DS104 


150-0035-00 


DS108 


150-0035-00 


L27 


108-0213-00 


L155 


108-0146-00 


L432 


108-0234-00 


L545 


120-0382-00 



CAP. ,FXD,CER DI:0.001UF, +100-0%, 500V 

CAP.,FXD,ELCTLT:6.8UF,20%,35V 

CAP. ,FXD,ELCTLT:6.8UF,20%,35V 

CAP. ,FXD,ELCTLT:10UF,20%,25V 

CAP. ,FXD,ELCTLT:10UF,20%,25V 

SEMICOND DEVICE :SILICON, 400V, 400MA 
SEMICOND DEVICE: SILICON, 400V, 400MA 
SEMICOND DEVICE :SILICON, 175V, 100MA 
SEMICOND DEVICE : SILICON, 175V, 100MA 
SEMICOND DEVICE:SILICON,400V,1A 

SEMICOND DEVICE:SILICON,400V,1A 
SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE : SILICON , 400V , 1A 
SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE : SILICON, 30V, 150MA 

SEMICOND DEVICE rSILICON, 30V, 150MA 
SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE: SILICON, 30V, 150MA 
SEMICOND DEVICE :SILICON, 30V, 150MA 
SEMICOND DEVICE: SILICON, 30V, 150MA 

SEMICOND DEVICE: SILICON, 400V, 400MA 
SEMICOND DEVICE : SILICON , 175V , 100MA 
SEMICOND DEVICE: SILICON, 30V, 150MA 
SEMICOND DEVICE:SILICON,400V,1A 
SEMICOND DEVICE: SILICON, 600V, 1A 

SEMICOND DEVICE : S ILICON, 10KV.5MA 
SEMICOND DEVICE :SILICON,10KV,5MA 
SEMICOND DEVICE :SILICON, 400V, 400MA 
SEMICOND DEVICE: SILICON, 5000V, 10MA 
SEMICOND DEVICE : S ILICON , 5000V , 10MA 

SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICE :SILICON, 30V, 150MA 
SEMICOND DEVICE:SILICON,50V,3A 
SEMICOND DEVICE : SILICON, 55V, 200MA 

SEMICOND DEVICE :SILICON, 30V, 150MA 
SEMICOND DEVICE : S ILICON , 3 OV , 15 OMA 

LAMP , GLOW : 9 OV , . 3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP , GLOW : 9 OV , . 3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP , GLOW : 90V , . 3MA 

LAMP , GLOW : 9 OV , . 3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP , GLOW : 90V , . 3MA 
LAMP , GLOW : 90V , . 3MA 

LAMP , GLOW : 90V , . 3MA 

COIL,RF:2.5MH 

COIL,RF:5UH 

COIL,RF:130UH 

XFMR,TOROID:14 TURNS, SINGLE 



72982 831-516E102P 

56289 196D685X0035KA1 

56289 196D685X0035KA1 

90201 TDC106M025FL 

90201 TDC106M025FL 



01295 


G2017-1 




01295 


G2017-1 




80009 


152-0061- 


-00 


80009 


152-0061- 


-00 


80009 


152-0066- 


-01 


80009 


152-0400- 


-00 


07910 


1N4152 




80009 


152-0066- 


-01 


07910 


1N4152 




07910 


1N4152 





07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

01295 G2017-1 

80009 152-0061-00 

07910 1N4152 

80009 152-0066-01 

80009 152-0040-00 

83003 H345 

83003 H345 

80009 152-0107-00 

14099 SA3282 

14099 SA3282 

07910 1N4152 

07910 1N4152 

07910 1N4152 

80009 152-0412-00 

80009 152-0333-00 

07910 1N4152 

07910 1N4152 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 

08806 A1D-T 



76493 
80009 
80009 
80009 



8862-2.5 
108-0146-00 
108-0234-00 
120-0382-00 



4051 SERVICE VOL. 2 



5-27 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



Q29 


151-0311-01 


Q41 


151-0150-00 


Q47 


151-0150-00 


Q84 


151-0134-00 


Q95 


151-0134-00 




151-0279-00 


Q123 


151-0124-00 


Q143 


151-0311-01 


Q162 


151-0219-00 


Q165 


151-0311-01 


Q186 


151-0316-00 


Q193 


151-0136-00 


Q231 


151-0270-00 


Q244 


151-0311-01 


Q247 


151-0219-00 


Q251 


151-0219-00 


Q328 


151-1005-00 


Q329 


151-0302-00 


Q338 


151-0223-00 


Q354 


151-0190-00 


Q355 


151-0190-00 


Q361 


151-0219-00 


Q362 


151-0219-00 


Q364 


151-0311-01 


Q366 


151-0311-01 


Q429 


151-0190-00 


Q432 


151-0256-00 


Q433 


151-0334-00 


Q459 


151-0219-00 


Q539 


151-0347-00 


Q1038 


151-0423-00 


Q1044 


151-0423-00 


Q1048 


151-0423-00 


Q1059 


151-0423-00 


Q1067 


151-0423-00 


Q1069 


151-0349-00 


Q1074 


151-0373-00 


Q1084 


151-0349-00 


Q1096 


151-0373-00 


R5 


315-0102-03 


R6 


315-0102-03 


R13 


311-1312-00 


R18 


305-0125-00 


R19 


315-0222-00 


R21 


315-0202-00 


R25 


315-0100-02 


R26 


315-0103-03 


R27 


322-0452-00 


R28 


321-0193-00 


R29 


321-0222-00 


R30 


308-0108-00 


R32 


321-0349-00 


R33 


321-0289-00 



TRANS ISTOR : S ILICON , NPN 
TRANS ISTOR : S ILICON , NPN 
TRANS ISTOR : S ILICON , NPN 
TRANS ISTOR : S ILICON , PNP 
TRANSISTOR:SILICON,PNP 

TRANS ISTOR: SILICON. NPN 

TRANSISTOR:SILICON,NPN,SEL FROM 2N3501 
TRANSISTOR:SILICON,NPN 
TRANS ISTOR: SILICON, PNP 
TRANSIST0R:SILIC0N,NPN 



TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 



SILICON, NPN 
SILICON, NPN 
SILICON, PNP 
SILICON, NPN 
SILICON, PNP 



TRANS ISTOR : S ILICON , PNP 

TRANS ISTOR : S ILICON , JFE , N-CHANNEL 

TRANS ISTOR : S ILICON , NPN 

TRANSISTOR:SILICON,NPN 

TRANS ISTOR : S ILICON , NPN 



TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 

TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 

TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR: 
TRANSISTOR; 



: SILICON, NPN 
:SILICON,PNP 
:SILICON,PNP 
: SILICON, NPN 
: SILICON, NPN 

: SILICON, NPN 
: SILICON, NPN 
: SILICON, NPN 
: SILICON, PNP 
: SILICON, NPN 

: SILICON, NPN 
[SILICON, NPN 
: SILICON, NPN 
[SILICON, NPN 
: SILICON, NPN 



TRANSISTOR:SILICON,NPN,SEL FROM MJE2801 

TRANSISTOR:SILICON,PNP 

TRANS ISTOR: SILICON, NPN, SEL FROM MJE2801 

TRANS ISTOR : S ILICON , PNP 

RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,VAR,NONWIR:5M OHM,20%,1W 
RES. ,FXD,CMPSN:1.2M OHM,5%,2W 
RES. ,FXD,CMPSN:2.2K OHM,5%,0.25W 

RES.,FXD,CMPSN:2K OHM,5%,0.25W 
RES. ,FXD,CMPSN:10 OHM,5%,0.25W 
RES. ,FXD,CMPSN:10K OHM,5%,0.25W 
RES. ,FXD,FILM:499K OHM,1%,0.25W 
RES. ,FXD,FILM:1K OHM,l% ,0. 125W 

RES. ,FXD, FILM: 2K OHM, 1% ,0. 125W 
RES.,FXD,WW:15K 0HM,5%,5W 
RES.,FXD,FILM:42.2K OHM,1%,0.125W 
RES. ,FXD, FILM: 10K OHM, 1% ,0. 125W 



04713 
80009 
80009 
80009 
80009 



MJE340 

151-0150-00 

151-0150-00 

151-0134-00 

151-0134-00 



80009 151-0279-00 

80009 151-0124-00 

04713 MJE340 

80009 151-0219-00 

04713 MJE340 



80009 


151-0316- 


-00 


02735 


35495 




80009 


151-0270- 


-00 


04713 


MJE340 




80009 


151-0219- 


-00 


80009 


151-0219- 


-00 


80009 


151-1005- 


-00 


04713 


2N2222A 




80009 


151-0223- 


-00 


80009 


151-0190- 


-00 


80009 


151-0190- 


-00 


80009 


151-0219- 


-00 


80009 


151-0219- 


-00 


04713 


MJE340 




04713 


MJE340 




80009 


151-0190- 


-00 


80009 


151-0256- 


-00 


80009 


151-0334- 


-00 


80009 


151-0219- 


-00 


80009 


151-0347- 


-00 


01295 


TIP50 




01295 


TIP50 




01295 


TIP50 




01295 


TIP50 




01295 


TIP50 




80009 


151-0349- 


-00 


80009 


151-0373- 


-00 


80009 


151-0349- 


-00 


80009 


151-0373- 


-00 



01121 CB1025 

01121 CB1025 

01121 10M586 

01121 HB1255 

01121 CB2225 

01121 CB2025 

01121 CB1005 

01121 CB1035 

91637 MFF1421G49902F 

91637 MFF1816G10000F 

91637 MFF1816G20000F 

91637 RS5-B15001J 

91637 MFF1816G42201F 

91637 MFF1816G10001F 



5-28 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 





Tektronix 


Ckt No. 


Part No. 


R34 


321-0366-00 


R35 


321-0260-00 


R36 


311-1560-00 


R37 


305-0154-00 


R38 


315-0470-03 


R39 


315-0470-03 


R40 


315-0184-00 


R41 


305-0433-00 


R43 


303-0134-00 


R44 


303-0134-00 


R48 


303-0224-00 


R59 


315-0470-03 


R61 


315-0470-03 


R64 


305-0683-00 


R66 


315-0101-03 


R67 


315-0470-03 


R71 


303-0391-00 


R74 


307-0344-00 


R75 


303-0331-00 


R86 


315-0101-03 


R97 


315-0101-03 


R104 


301-0395-00 


R106 


301-0104-00 


R108 


301-0103-00 


R109 


315-0102-03 


R112 


307-0316-00 


R121 


315-0101-03 


R122 


301-0333-00 


R123 


315-0101-03 


R126 


315-0102-00 


R127 


315-0333-00 


R128 


322-0336-00 


R129 


311-1556-00 


R131 


321-0193-00 


R132 


323-0362-00 


R133 


305-0223-00 


R135 


315-0101-03 


R140 


315-0101-03 


R146 


315-0101-03 


R148 


322-0452-00 


R149 


315-0101-03 


R152 


315-0102-00 


R153 


315-0100-02 


R154 


315-0102-00 


R159 


323-0398-00 


R167 


305-0124-00 


R168 


315-0101-03 


R169 


305-0154-00 


R176 


321-0234-00 


R178 


321-0243-00 


R189 


315-0100-02 


R190 


315-0100-02 


R191 


315-0511-00 



Serial/Mode! No. 
Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 

RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



FXD, FILM :63.4K OHM,l% ,0. 125W 
FXD,FILM:4.99K OHM,1%,0. 125W 
VAR,NONWIR:5K OHM,5%,0.50W 
FXD, CMPSN :150K OHM,5%,2W 
FXD,CMPSN:47 OHM,5%,0.25W 

FXD,CMPSN:47 OHM,5%,0.25W 
FXD,CMPSN:180K OHM,5%,0.25W 
FXD,CMPSN:43K OHM,5%,2W 
FXD , CMPSN : 1 3 OK OHM , 5 % , 1W 
FXD,CMPSN:130K 0HM,5%,1W 

FXD, CMPSN :220K OHM,5%,lW 
FXD,CMPSN:47 OHM,5%,0.25W 
FXD,CMPSN:47 OHM,5%,0.25W 
FXD, CMPSN :68K OHM,5%,2W 
FXD, CMPSN: 100 OHM,5%,0.25W 

FXD,CMPSN:47 OHM,5%,0.25W 
FXD, CMPSN: 390 0HM,5%,1W 
FXD, FILM: 3 SECT, 1.5 OHM EA SECT 
FXD,CMPSN:330 0HM,5%,1W 
FXD,CMPSN:100 OHM,5%,0.25W 

FXD,CMPSN:100 OHM,5%,0.25W 
FXD, CMPSN: 3. 9M OHM,5%,0.50W 
FXD, CMPSN :100K OHM,5%,0.5W 
FXD,CMPSN:10K OHM,5%,0.50W 
FXD, CMPSN: IK OHM,5%,0.25W 

FXD, FILM :15M OHM 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:33K OHM,5%,0.50W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,CMPSN:33K OHM,5%,0.25W 
FXD, FILM: 30. 9K OHM,1%,0.25W 
VAR,NONWIR:50K OHM, 20% ,0.50W 
FXD,FILM:1K OHM,1%,0. 125W 
FXD,FILM:57.6K OHM,1%,0.50W 

FXD,CMPSN:22K OHM,5%,2W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,FILM:499K OHM,1%,0.25W 

FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD, CMPSN: 10 OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,FILM:137K OHM,1%,0.50W 

FXD, CMPSN :120K OHM,5%,2W 
FXD,CMPSN:100 OHM,5%,0,25W 
FXD, CMPSN: 15 OK OHM,5%,2W 
FXD,FILM:2.67K OHM, 1%,0. 125W 
FXD,FILM:3.32K OHM, 1% ,0. 125W 

FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:510 OHM,5%,0.25W 



91637 MFF1816G63401F 

91637 MFF1816G49900F 

73138 91A-50000M 

01121 HB1545 

01121 CB4705 

01121 CB4705 

01121 CB1845 

01121 HB4335 

01121 GB1345 

01121 GB1345 

01121 GB2245 

01121 CB4705 

01121 CB4705 

01121 HB6835 

01121 CB1015 

01121 CB4705 

01121 GB3915 

80009 307-0344-00 

01121 GB3315 

01121 CB1015 

01121 CB1015 

01121 EB3955 

01121 EB1045 

01121 EB1035 

01121 CB1025 

80009 307-0316-00 

01121 CB1015 

01121 EB3335 

01121 CB1015 

01121 CB1025 

01121 CB3335 

75042 CEBT0-3092F 

73138 91A R50K 

91637 MFF1816G10000F 

75042 CECT0-5762F 

01121 HB2235 

01121 CB1015 

01121 CB1015 

01121 CB1015 

91637 MFF1421G49902F 

01121 CB1015 

01121 CB1025 

01121 CB1005 

01121 CB1025 

91637 MFF1226G13702F 

01121 HB1245 

01121 CB1015 

01121 HB1545 

91637 MFF1816G26700F 

91637 MFF1816G33200F 

01121 CB1005 

01121 CB1005 

01121 CB5115 



4051 SERVICE VOL. 2 



5-29 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial /Model No. 
Ckt No. Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R192 


315-0511-00 


R196 


301-0472-00 


R208 


301-0101-00 


R209 


301-0101-00 


R212 


307-0314-00 


R212 


307-0314-01 


R221 


315-0100-02 


R223 


321-0452-00 


R224 


311-1556-00 


R227 


315-0681-00 


R228 


315-0102-00 


R229 


315-0100-02 


R235 


322-0338-00 


R236 


321-0289-00 


R237 


306-0272-00 


R242 


301-0272-00 


R244 


315-0682-00 


R246 


315-0101-03 


R248 


311-1228-00 


R249 


315-0101-03 


R252 


311-1559-00 


R253 


315-0272-00 


R254 


315-0471-00 


R255 


315-0103-00 


R257 


315-0103-00 


R260 


321-0260-00 


R261 


321-0294-00 


R262 


321-0353-00 


R263 


315-0101-03 


R264 


315-0682-00 


R267 


315-0101-03 


R270 


311-1731-00 


R271 


311-1560-00 


R272 


311-1731-00 


R273 


311-1560-00 


R280 


321-0387-00 


R281 


321-0328-00 


R284 


321-0234-00 


R286 


321-0328-00 


R289 


321-0387-00 


R290 


321-0328-00 


R292 


321-0243-00 


R293 


321-0328-00 


R321 


315-0224-00 


R322 


315-0824-00 


R323 


315-0824-00 


R324 


315-0104-00 


R326 


315-0822-00 


R329 


315-0222-00 


R330 


315-0221-00 


R331 


315-0152-00 


R332 


315-0221-00 


R333 


315-0471-00 



B082623 B082819 



B082820 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



FXD,CMPSN:510 OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.50W 
FXD,CMPSN:100 OHM,5%,0.50W 
FXD,CMPSN:100 OHM,5%,0.50W 
FXD, FILM: VOLTAGE DIVIDE 

FXD, FILM: VOLTAGE DIVIDE 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,FILM:499K OHM,l% ,0. 125W 
VAR,NONWIR:50K OHM, 20% ,0. 50W 
FXD,CMPSN:680 OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,FILM:32.4K OHM,1%,0.25W 
FXD,FILM:10K OHM,1%,0. 125W 
FXD,CMPSN:2.7K OHM,10%,2W 

FXD,CMPSN:2.7K OHM,5%,0.50W 
FXD,CMPSN:6.8K OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
VAR,NONWIR:10K OHM, 20% ,0. 50W 
FXD,CMPSN:100 OHM,5%,0.25W 

VAR,NONWIR:10K OHM, 20% ,0.50W 
FXD,CMPSN:2.7K OHM,5%,0.25W 
FXD,CMPSN:470 OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 

FXD,FILM:4.99K OHM,l% ,0. 125W 
FXD,FILM:11.3K OHM, 1%,0. 125W 
FXD,FILM:46.4K OHM, 1%,0. 125W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:6.8K OHM,5%,0.25W 

FXD,CMPSN:100 OHM,5%,0.25W 
VAR,NONWIR:20 OHM,0.5W 
VAR,NONWIR:5K OHM,5%,0.50W 
VAR,NONWIR:20 OHM,0.5W 
VAR,NONWIR:5K OHM,5%,0.50W 

FXD,FILM:105K OHM,l% ,0. 125W 
FXD,FILM:25.5K OHM,1%,0. 125W 
FXD,FILM:2.67K OHM,l% ,0. 125W 
FXD, FILM: 25. 5K OHM, 1% ,0. 125W 
FXD,FILM:105K OHM, 1% ,0. 125W 

FXD,FILM:25.5K OHM,1%,0. 125W 
FXD,FILM:3.32K OHM,l% ,0. 125W 
FXD,FILM:25.5K OHM,1%,0.125W 
FXD,CMPSN:220K OHM,5%,0.25W 
FXD,CMPSN:820K OHM,5%,0.25W 

FXD,CMPSN:820K OHM,5%,0.25W 
FXD,CMPSN:100K OHM,5%,0.25W 
FXD,CMPSN:8.2K OHM,5%,0.25W 
FXD,CMPSN:2.2K OHM,5%,0.25W 
FXD,CMPSN:220 OHM,5%,0.25W 

FXD,CMPSN:1.5K OHM,5%,0.25W 
FXD,CMPSN:220 OHM,5%,0.25W 
FXD,CMPSN:470 OHM,5%,0.25W 



01121 CB5115 

01121 EB4725 

01121 EB1015 

01121 EB1015 

80009 307-0314-00 

80009 307-0314-01 

01121 CB1005 

91637 MFF1816G49902F 

73138 91A R50K 

01121 CB6815 

01121 CB1025 

01121 CB1005 

75042 CEBT0-3242F 

91637 MFF1816G10001F 

01121 HB2721 

01121 EB2725 

01121 CB6825 

01121 CB1015 

32997 3386F-T04-103 

01121 CB1015 



73138 


91A-10001M 


01121 


CB2725 


01121 


CB4715 


01121 


CB1035 


01121 


CB1035 


91637 


MFF1816G49900F 


91637 


MFF1816G11301F 


91637 


MFF1816G46401F 


01121 


CB1015 


01121 


CB6825 


01121 


CB1015 


73138 


91A-20R00M 


73138 


91A-50000M 


73138 


91A-20R00M 


73138 


91A-50000M 


91637 


MFF1816G10502F 


91637 


MFF1816G25501F 


91637 


MFF1816G26700F 


91637 


MFF1816G25501F 


91637 


MFF1816G10502F 


91637 


MFF1816G25501F 


91637 


MFF1816G33200F 


91637 


MFF1816G25501F 


01121 


CB2245 


01121 


CB8245 


01121 


CB8245 


01121 


CB1045 


01121 


CB8225 


01121 


CB2225 


01121 


CB2215 


01121 


CB1525 


01121 


CB2215 


01121 


CB4715 



5-30 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Mode! No. 
Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R334 


315-0301-00 


R335 


315-0100-02 


R336 


315-0102-00 


R339 


315-0470-03 


R341 


323-0396-00 


R342 


321-0269-00 


R343 


315-0102-00 


R344 


315-0472-00 


R345 


315-0222-00 


R346 


321-0316-00 


R347 


321-0309-00 


R348 


321-0289-00 


R351 


315-0101-03 


R352 


321-0385-00 


R353 


315-0201-02 


R355 


315-0201-02 


R356 


315-0471-00 


R357 


315-0471-00 


R359 


311-1228-00 


R360 


321-0260-00 


R361 


321-0260-00 


R369 


315-0105-00 


R392 


311-1559-00 


R393 


311-1559-00 


R427 


315-0103-00 


R428 


315-0122-00 


R429 


315-0272-00 


R430 


315-0101-03 


R432 


315-0272-00 


R433 


308-0244-00 


R434 


308-0244-00 


R435 


307-0103-00 


R436 


315-0472-00 


R438 


315-0100-02 


R439 


315-0100-02 


R443 


321-0280-00 


R444 


321-0274-00 


R446 


315-0335-00 


R447 


315-0102-00 


R448 


315-0152-00 


R449 


315-0154-00 


R450 


315-0103-00 


R451 


315-0473-00 


R453 


315-0472-00 


R454 


315-0472-00 


R455 


315-0102-00 


R456 


315-0103-00 


R457 


321-0315-00 


R459 


315-0102-00 


R460 


315-0102-00 


R461 


315-0103-00 


R462 


315-0182-00 


R463 


315-0103-00 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



FXD,CMPSN:300 OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:47 OHM,5%,0.25W 
FXD,FILM:130K OHM,1%,0.50W 

FXD,FILM:6.19K OHM,1%,0. 125W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
trvT^ T5PSN;2 2K OHM 5% 0.25W 
FXD,FILM:19.1K OHM,l% ,0 .125W 

FXD,FILM:16.2K OHM,l% ,0. 125W 
FXD,FILM:10K OHM,l% ,0. 125W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,FILM:100K OHM, 1% ,0. 125W 
FXD,CMPSN:200 OHM,5%,0.25W 

FXD,CMPSN:200 OHM,5%,0.25W 
FXD,CMPSN:470 OHM,5%,0.25W 
FXD,CMPSN:470 OHM,5%,0.25W 
VAR,NONWIR:10K OHM, 20% , 0. 50W 
FXD,FILM:4.99K OHM, 1%,0. 125W 

FXD,FILM:4.99K OHM,l% , 0. 125W 
FXD,CMPSN:1M OHM,5%,0.25W 
VAR,NONWIR:10K OHM, 20% ,0. 50W 
VAR,NONWIR:10K OHM, 20% ,0.50W 
FXD,CMPSN:10K OHM,5%,0.25W 

FXD,CMPSN:1.2K OHM,5%,0.25W 
FXD,CMPSN:2.7K OHM,5%,0.25W 
FXD,CMPSN:100 OHM,5%,0.25W 
FXD,CMPSN:2.7K OHM,5%,0.25W 
FXD,WW:0.3 OHM,10%,2W 

FXD,WW:0.3 OHM,10%,2W 
FXD,CMPSN:2.7 OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 
FXD,CMPSN:10 OHM,5%,0.25W 

FXD,FILM:8.06K OHM, 1% ,0. 125W 
FXD.FILM:6.98K OHM, 1% , 0. 125W 
FXD,CMPSN:3.3M OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:1.5K OHM,5%,0.25W 

FXD,CMPSN:150K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:47K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 

FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,FILM:18.7K OHM,1%,0. 125W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:1.8K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 



01121 CB3015 

01121 CB1005 

01121 CB1025 

01121 CB4705 

75042 CECT0-1303F 

91637 MFF1816G61900F 

01121 CB1025 

01121 CB4725 

01121 CB2225 

91637 MFF1816G19101F 

91637 MFF1816G16201F 

91637 MFF1816G10001F 

01121 CB1015 

91637 MFF1816G10002F 

01121 CB2015 

01121 CB2015 

01121 CB4715 

01121 CB4715 

32997 3386F-T04-103 

91637 MFF1816G49900F 

91637 MFF1816G49900F 

01121 CB1055 

73138 91A-10001M 

73138 91A-10001M 

01121 CB1035 

01121 CB1225 

01121 CB2725 

01121 CB1015 

01121 CB2725 

91637 RS2B162ER3000K 

91637 RS2B162ER3000K 

01121 CB27G5 

01121 CB4725 

01121 CB1005 

01121 CB1005 

91637 MFF1816G80600F 

91637 MFF1816G69800F 

01121 CB3355 

01121 CB1025 

01121 CB1525 

01121 CB1545 

01121 CB1035 

01121 CB4735 

01121 CB4725 

01121 CB4725 

01121 CB1025 

01121 CB1035 

91637 MFF1816G18701F 

01121 CB1025 

01121 CB1025 

01121 CB1035 

01121 CB1825 

01121 CB1035 



4051 SERVICE VOL. 2 



5-31 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
Ckt No. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R464 


315-0182-00 


R465 


315-0102-00 


R466 


315-0102-00 


R467 


315-0103-00 


R468 


321-0339-00 


R471 


321-0392-00 


R472 


321-0306-00 


R473 


321-0280-00 


R493 


321-0280-00 


R494 


321-0405-00 


R495 


321-0341-00 


R544 


307-0103-00 


R545 


307-0103-00 


R546 


315-0102-00 


R548 


315-0102-00 


R588 


321-0314-00 


R594 


321-0236-00 


R595 


321-0314-00 


R651 


315-0102-00 


R652 


315-0471-00 


R654 


315-0472-00 


R655 


315-0102-00 


R656 


315-0472-00 


R657 


315-0272-00 


R658 


315-0272-00 


R659 


315-0102-00 


R660 


315-0102-00 


R661 


321-0247-00 


R662 


315-0101-03 


R663 


315-0472-00 


R670 


307-0103-00 


R672 


307-0103-00 


R686 


311-1555-00 


R687 


311-1555-00 


R691 


311-1561-00 


R695 


311-1555-00 


R770 


321-0222-00 


R772 


321-0244-00 


R775 


321-0222-00 


R776 


321-0217-00 


R777 


321-0283-00 


R781 


315-0102-00 


R782 


321-0276-00 


R783 


321-0289-00 


R784 


321-0193-00 


R785 


321-0193-00 


R789 


321-0283-00 


R791 


321-0193-00 


R793 


321-0193-00 


R794 


321-0289-00 


T154 


120-1026-00 


T314 


120-1028-00 



RES.,FXD,CMPSN:1.8K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES.,FXD,CMPSN:10K OHM,5%,0.25W 
RES. ,FXD,FILM:33.2K OHM,1%,0.125W 

RES, -FXD.FILM:118K OHM.1% ,0. 125W 
RES. , FXD, FILM: 15K OHM,1%,0. 125W 
RES. ,FXD,FILM:8.06K OHM,1%,0.125W 
RES. ,FXD,FILM:8.06K OHM,1%,0.125W 
RES. ,FXD, FILM: 162K OHM, 1% ,0. 125W 

RES. , FXD, FILM: 34. 8K OHM, 1%,0.125W 
RES. ,FXD,CMPSN:2.7 OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.7 OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 

RES. ,FXD,FILM:18.2K 0HM,1% ,0. 125W 
RES. ,FXD,FILM:2.8K OHM,1%,0. 125W 
RES. ,FXD,FILM:18.2K OHM,l% ,0. 125W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:470 OHM,5%,0.25W 

RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.7K OHM,5%,0.25W 

RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES., FXD, FILM: 3. 65K OHM,1%,0.125W 
RES. ,FXD,CMPSN:100 OHM,5%,0.25W 
RES.,FXD,CMPSN:4.7K OHM,5%,0.25W 

RES. ,FXD,CMPSN:2.7 OHM,5%,0.25W 
RES. ,FXD,CMPSN:2.7 OHM,5%,0.25W 
RES. ,VAR,NONWIR:100K OHM, 20%, 0. 50W 
RES. ,VAR,NONWIR:100K OHM,20%,0.5W 
RES. ,VAR,NONWIR:2.5K OHM,20%,0.5W 

RES. ,VAR,NONWIR:100K OHM,20%,0.5W 
RES. ,FXD, FILM: 2K OHM,1%,0. 125W 
RES. ,FXD,FILM:3.4K OHM,l% ,0. 125W 
RES. ,FXD, FILM: 2K OHM,l% ,0. 125W 
RES., FXD, FILM :1.78K OHM,l% ,0. 125W 

RES. ,FXD,FILM:8.66K OHM, 1%,0. 125W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,FILM:7.32K OHM,1%,0. 125W 
RES. ,FXD,FILM:10K OHM, 1% ,0. 125W 
RES. , FXD, FILM: IK OHM,l% ,0. 125W 

RES. , FXD, FILM: IK OHM,l% ,0. 125W 
RES. ,FXD,FILM:8.66K OHM,1%,0. 125W 
RES. , FXD, FILM: IK OHM, 1%,0. 125W 
RES. , FXD, FILM: IK OHM, 1%,0. 125W 
RES. , FXD, FILM: 10K OHM,l% ,0. 125W 

XFMR,RF:TOROID,2 WINDINGS 
XFMR,PWR,SDN SU:HIGH VOLTAGE 



01121 CB1825 

01121 CB1025 

01121 CB1025 

01121 CB1035 

91637 MFF1816G33201F 

91637 MFF1816G11802F 

91637 MFF1816G15001F 

91637 MFF1816G80600F 

91637 MFF1816G80600F 

91637 MFF1816G16202F 

91637 MFF1816G34801F 

01121 CB27G5 

01121 CB27G5 

01121 CB1025 

01121 CB1025 



91637 


MFF1816G18201F 


91637 


MFF1816G28000F 


91637 


MFF1816G18201F 


01121 


CB1025 


01121 


CB4715 


01121 


CB4725 


01121 


CB1025 


01121 


CB4725 


01121 


CB2725 


01121 


CB2725 


01121 


CB1025 


01121 


CB1025 


91637 


MFF1816G36500F 


01121 


CB1015 


01121 


CB4725 


01121 


CB27G5 


01121 


CB27G5 


73138 


91A R2500 


73138 


91A R100K 


73138 


91A R100K 


73138 


91A R100K 


91637 


MFF1816G20000F 


91637 


MFF1816G34000F 


91637 


MFF1816G20000F 


91637 


MFF1816G17800F 


91637 


MFF1816G86600F 


01121 


CB1025 


91637 


MFF1816G73200F 


91637 


MFF1816G10001F 


91637 


MFF1816G10000F 


91637 


MFF1816G10000F 


91637 


MFF1816G86600F 


91637 


MFF1816G10000F 


91637 


MFF1816G10000F 


91637 


MFF1816G10001F 


80009 


120-1026-00 


80009 


120-1028-00 



5-32 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
CktNo. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



U31 


156-0067-00 


U155 


156-0162-00 


U184 


156-0158-00 


U255 


156-0096-00 


U445 


156-0067-00 


U485 


155-0152-00 


U552 


156-0145-00 


U555 


156-0093-00 


U557 


156-0706-00 


U561 


156-0093-00 


U566 


156-0706-00 


U585 


155-0154-00 


VR196 


152-0195-00 


VR265 


152-0394-00 


VR266 


152-0087-00 


VR358 


152-0278-00 


VR573 


152-0166-00 


VR575 


152-0166-00 


VR592 


152-0166-00 


VR593 


152-0166-00 



156-0067-00 

156-0162-00 

156-0158-00 

LM311H 

156-0067-00 



80009 155-0152-00 

01295 SN7438N 

01295 SN7416N 

m •"> Q C r«-vr'"7 ^Tllut 

01295 SN7416N 



MICROCIRCUIT, LI : OPERATIONAL AMPLIFIER 80009 

MICROCIRCUIT, LI: DIFFERENTIAL VIDEO AMPL 80009 

MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 80009 

MICROCIRCUIT, LI: VOLTAGE COMPARATOR 27014 

MICROCIRCUIT, LI: OPERATIONAL AMPLIFIER 80009 

MICROCIRCUIT, LI: GEOMETRY FOCUS CORR 
MICROCIRCUIT, DI: QUAD 2-INPUT POS NAND BFR 
MICROCIRCUIT, DI : HEX. INVERTER 

MICROCIRCUIT , DI : HEX . INVERTER 

MICROCIRCUIT, DI: DUAL MONOSTABLE MV 
MICROCIRCUIT, LI: CHANNEL SWITCH 

SEMICOND DEVICE:ZENER,0.4W,5.1V,5% 
SEMICOND DEVICE :ZENER,1W, 47V, 5% 
SEMICOND DEVICE : ZENER,1W, 100V, 5% 
SEMICOND DEVICE:ZENER,0.4W,3V,5% 
SEMICOND DEVICE:ZENER,0.4W,6.2V,5% 

SEMICOND DEVICE:ZENER,0.4W,6.2V,5% 81483 69-9035 

SEMICOND DEVICE :ZENER,0.4W ,6.2V, 5% 81483 69-9035 

SEMICOND DEVICE :ZENER,0.4W, 6.2V, 5% 81483 69-9035 



01295 


SN74221N 




80009 


155-0154- 


-00 


80009 


152-0195- 


-00 


81483 


1N3036B 




04713 


SZ1627 




07910 


1N4372A 




81483 


69-9035 





A5 KEYBOARD: CALCULATOR, W/KEY CAPS 



CI 


283-0010-00 


C2 


283-0010-00 


Rl 


315-0472-00 


R2 


315-0472-00 


R3 


315-0472-00 


R4 


315-0472-00 


R5 


315-0472-00 


R6 


315-0472-00 


R7 


315-0472-00 


R8 


315-0472-00 


R9 


315-0472-00 


RIO 


315-0472-00 


Rll 


315-0472-00 


R12 


315-0472-00 


Ul 


156-0929-00 


U2 


156-0075-00 


U3 


156-0032-00 


U4 


156-0032-00 


U5 


156-0039-00 


U6 


156-0030-00 



CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 

RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 

RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RESo,FXD,CMPSN:4.7K OHM,5% f 0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 

RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES.,FXD,CMPSN:4.7K OHM,5%,0.25W 

MICROCIRCUIT, DI:4-16 LINE DECODER 
MICROCIRCUIT, DI:SGL 8-BIT DATA SEL MUX 
MICROCIRCUIT, DI:4-BIT BINARY COUNTER 
MICROCIRCUIT, DI:4-BIT BINARY COUNTER 
MICROCIRCUIT, DI: DUAL J-K FLIP FLOP 

MICROCIRCUIT, DI: QUAD 2-INPUT POS NAND GATE 



56289 273C20 

56289 273C20 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01121 CB4725 

01295 SN74159 

80009 156-0075-00 

01295 SN7493AN 

01295 SN7493AN 

01295 SN7473N 

01295 SN7400N 



4051 SERVICE VOL. 2 



5-33 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
Ckt No. Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



A6 CKT BOARD ASSY: TAPE DRIVE 



C21 


283-0081-00 


C22 


283-0081-00 


C101 


281-0525-00 


m 29 


281-0504-00 


C131 


283-0010-00 


C138 


281-0504-00 


C221 


281-0523-00 


C222 


283-0010-00 


C231 


283-0081-00 


C232 


283-0081-00 


C238 


281-0523-00 


C312 


281-0605-00 


C313 


281-0605-00 


C371 


283-0010-00 


C391 


281-0523-00 


C392 


281-0523-00 


C393 


283-0065-00 


C394 


283-0065-00 


C480 


283-0083-00 


C481 


283-0010-00 


C482 


285-1067-00 


C495 


283-0010-00 


C521 


290-0297-00 


C531 


283-0081-00 


C541 


283-0081-00 


C581 


285-1067-00 


C590 


283-0119-00 


C591 


283-0119-00 


C592 


283-0111-00 


C593 


283-0119-00 


C595 


283-0177-00 


C596 


283-0003-00 


CR1 


152-0141-02 


CR2 


152-0141-02 


CR3 


152-0141-02 


CR4 


152-0141-02 


CR120 


152-0141-02 


CR121 


152-0141-02 


CR122 


152-0141-02 


CR136 


152-0141-02 


CR137 


152-0141-02 


CR138 


152-0141-02 


CR139 


152-0141-02 


CR201 


152-0141-02 


CR202 


152-0141-02 


CR203 


152-0141-02 


CR204 


152-0141-02 


CR205 


152-0141-02 


CR311 


152-0141-02 


CR312 


152-0141-02 


CR313 


152-0141-02 


CR314 


152-0141-02 



CAP.,FXD,CER DI:0.1UF, +80-20%, 25V 
CAP.,FXD,CER DIrO.lUF, +80-20%, 25V 
CAP.,FXD,CER DI:470PF,+/-94PF,500V 
CAP, ,FXD,CER DI;10PF,-+/-1PF ,500V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 

CAP.,FXD,CER DI:10PF,+/-1PF,500V 
CAP.,FXD,CER DI:100PF,+/-20PF,500V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DIrO.lUF, +80-20%, 25V 
CAP.,FXD,CER DIrO.lUF, +80-20%, 25V 

CAP.,FXD,CER DIrl00PF,+/-20PF,500V 
CAP.,FXD,CER DI:200PF,10%,500V 
CAP.,FXD,CER DIr200PF,10%,500V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:100PF,+/-20PF,500V 

CAP. ,FXD,CER DIrl00PF,+/-20PF,500V 
CAP.,FXD,CER DI:0.001UF,5%,100V 
CAP.,FXD,CER DIr0.001UF,5%,100V 
CAP.,FXD,CER DI:0.0047UF,20%,500V 
CAP. ,FXD,CER DIr0.05UF, +100-20%, 50V 

CAP. ,FXD,PLSTC:0.5UF,1%,200V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,ELCTLT:39UF,10%,10V 
CAP.,FXD,CER DIrO.lUF, +80-20%, 25V 
CAP. ,FXD,CER DIrO.lUF, +80-20%, 25V 

CAP. ,FXD,PLSTC:0.5UF,1%,200V 
CAP.,FXD,CER DIr2200PF,5%,200V 
CAP.,FXD,CER DI:2200PF,5%,200V 
CAP.,FXD,CER DIrO.lUF, 20%, 50V 
CAP.,FXD,CER DIr2200PF,5%,200V 

CAP.,FXD,CER DIrlUF, +80-20%, 25V 
CAP. ,FXD,CER DIrO.OlUF, +80-20%, 150V 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



: SILICON, 30V, 15 OMA 
:SILICON,30V,150MA 
: SILICON, 30V, 150MA 
: SILICON, 30V, 150MA 
: SILICON, 30V, 150MA 



SEMICOND DEVICE : SILICON, 30V, 15 OMA 
SEMICOND DEVICErSILICON,30V,150MA 
SEMICOND DEVICE rSILICON, 30V, 150MA 
SEMICOND DEVICErSILICON,30V,150MA 
SEMICOND DEVICE rSILICON, 30V, 150MA 

SEMICOND DEVICE:SILICON,30V,150MA 
SEMICOND DEVICErSILICON,30V,150MA 
SEMICOND DEVICErSILICON,30V,150MA 
SEMICOND DEVICE rSILICON, 30V, 150MA 
SEMICOND DEVICE rSILICON, 30V, 15 OMA 



SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 
SEMICOND DEVICE 



:SILICON,30V,150MA 
;SILICON,30V,150MA 
: SILICON, 30V, 150MA 
: SILICON, 30V, 150MA 
: SILICON, 30V, 150MA 



56289 36C600 

56289 36C600 

04222 7001-1364 

72982 301-055C0G0100F 

56289 273C20 

72982 301-055C0G0100F 

72982 301-000U2M0101M 

56289 273C20 

56289 36C600 

56289 36C600 

72982 301-000U2M0101M 

04222 7001-1375 

04222 7001-1375 

56289 273C20 

72982 301-OOOU2M0101M 

72982 301-000U2M0101M 

72982 805-505B102J 

72982 805-505B102J 

72982 811-565C472J 

56289 273C20 

14752 230B1C504F 

56289 273C20 

56289 150D396X9010B2 

56289 36C600 

56289 36C600 

14752 230B1C504F 

72982 855-535B222J 

72982 855-535B222J 

72982 8121-N088Z5U104M 

72982 855-535B222J 

72982 8131N039 E 105Z 

72982 855-558Z5U-103Z 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 

07910 1N4152 



5-34 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 





Tektronix Serial 


'Mode! No. 


Ckt No. 


Part No. Eft 


Dscont 


CR461 


152-0141-02 




CR580 


152-0107-00 




CR590 


152-0107-00 




Q391 


151-0192-00 




Q392 


151-0192-00 




0451 


151-0188-00 




Q461 


151-0190-00 




Q462 


151-0190-00 




Q463 


151-0190-00 




Q464 


151-0190-00 




Q491 


151-0190-00 




Q531 


151-0188-00 




Q541 


151-0188-00 




Q551 


151-0190-00 




Q561 


151-1066-00 




0581 


151-0188-00 




0582 


151-0190-00 




Rl 


321-0807-00 




R2 


321-0246-00 




R3 


321-0246-00 




R4 


315-0473-00 




R5 


315-0473-00 




R6 


315-0153-00 




R7 


315-0153-00 




R8 


311-1235-00 




R9 


311-1235-00 




R21 


321-0807-00 




R100 


321-0354-00 




R101 


321-0354-00 




R121 


321-0354-00 




R122 


321-0354-00 




R127 


315-0100-00 




R128 


315-0100-00 




R129 


321-0807-00 




R136 


315-0473-00 




R137 


321-0246-00 




R138 


321-0246-00 




R139 


321-0807-00 




R149 


315-0473-00 




R150 


315-0473-00 




R201 


315-0102-00 




R204 


315-0102-00 




R205 


315-0912-00 




R230 


321-0260-00 




R231 


315-0394-00 




R232 


315-0394-00 




R234 


321-0260-00 




R235 


315-0912-00 




R237 


315-0203-00 




R238 


315-0203-00 




R301 


321-0371-00 




R302 


321-0371-00 





Name & Description 



Mfr 
Code 



fr Part Number 



SEMICOND DEVICE: SILICON, 30V, 150MA 
SEMICOND DEVICE:SILICON,400V,400MA 
SEMICOND DEVICE: SILICON, 400V, 400MA 

TRANSISTOR:SILICON,NPN,SEL FROM MPS6521 
TRANS IST0R:SILICON,NPN,SEL FROM MPS6521 
TRANS I STOR : S ILICON , PNP 
TRANS ISTOR : S ILICON , NPN 
TRANSISTOR:SILICON,NPN 



TRANSISTOR 
TRANSISTOR 
TRANSISTOR 
TRANSISTOR 
TRANSISTOR 



: SILICON, NPN 
:SILICON,NPN 
: SILICON, NPN 
: SILICON, PNP 
: SILICON, PNP 



TRANSISTOR :SILICON, NPN 
TRANSISTOR : S ILICON , FE , P-CHANNEL 
TRANS ISTOR : S ILICON , PNP 
TRANS I STOR : S ILICON , NPN 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES = 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 



FXD,FILM:900K OHM,l% ,0. 125W 
FXD,FILM:3.57K OHM, 1% ,0. 125W 
FXD,FILM:3.57K OHM,l% ,0.125W 
FXD,CMPSN:47K OHM,5%,0.25W 
FXD,CMPSN:47K OHM,5%,0.25W 

FXD,CMPSN:15K OHM,5%,0.25W 
FXD,CMPSN:15K OHM,5%,0.25W 
VAR,NONWIR:100K OHM, 20% ,0. 50W 
VAR,NONWIR:100K OHM, 20%, 0. 50W 
FXD,FILM:900K OHM, 1% ,0. 125W 

FXD,FILM:47.5K OHM, 1% ,0. 125W 
FXD,FILM:47.5K OHM, 1% ,0. 125W 
FXD,FILM:47.5K OHM, 1% , 0. 125W 
FXD,FILM:47.5K OHM,l% ,0. 125W 
FXD,CMPSN:10 OHM,5%,0.25W 

FXD,CMPSN:10 OHM,5%,0.25W 
FXD.FILM:900K OHM,l% ,0. 125W 
FXD,CMPSN:47K OHM,5%,0.25W 
FXD,FILM:3.57K OHM,l% ,0. 125W 
FXD,FILM:3.57K OHM .1% .0.125W 

FXD,FILM:900K OHM,l% ,0. 125W 
FXD,CMPSN:47K OHM,5%,0.25W 
FXD,CMPSN:47K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 

FXD,CMPSN:9.1K OHM,5%,0.25W 
FXD,FILM:4.99K OHM, 1% ,0. 125W 
FXD,CMPSN:390K OHM,5%,0.25W 
FXD,CMPSN:390K OHM,5%,0.25W 
FXD,FILM:4.99K OHM, 1% , 0. 125W 

FXD,CMPSN:9.1K OHM,5%,0.25W 
FXD,CMPSN:20K OHM,5%,0.25W 
FXD,CMPSN:20K OHM,5%,0.25W 
FXD,FILM:71.5K OHM, 1% ,0. 125W 
FXD,FILM:71.5K OHM,l% ,0. 125W 



07910 1N4152 

80009 152-0107-00 

80009 152-0107-00 

80009 151-0192-00 

80009 151-0192-00 

01295 2N3906 

80009 151-0190-00 

80009 151-0190-00 

80009 151-0190-00 

80009 151-0190-00 

80009 151-0190-00 

01295 2N3906 

01295 2N3906 



80009 


151-0190-00 


80009 


151-1066-00 


01295 


2N3906 


80009 


151-0190-00 


91637 


HFF1104F90002F 


91637 


MFF1816G35700F 


91637 


MFF1816G35700F 


01121 


CB4735 


01121 


CB4735 


01121 


CB1535 


01121 


CB1535 


32997 


3386F-T04-104 


32997 


3386F-T04-104 


91637 


HFF1104F90002F 


91637 


MFF1816G47501F 


91637 


MFF1816G47501F 


91637 


MFF1816G47501F 


91637 


MFF1816G47501F 


01121 


CB1005 


01121 


CB1005 


91637 


HFF1104F90002F 


01121 


CB4735 


91637 


MFF1816G35700F 


91637 


MFF1816G35700F 


91637 


HFF1104F90002F 


01121 


CB4735 


01121 


CB4735 


01121 


CB1025 


01121 


CB1025 


01121 


CB9125 


91637 


MFF1816G49900F 


01121 


CB3945 


01121 


CB3945 


91637 


MFF1816G49900F 


01121 


CB9125 


01121 


CB2035 


01121 


CB2035 


91637 


MFF1816G71501F 


91637 


MFF1816G71501F 



4051 SERVICE VOL. 2 



5-35 



REPLACEABLE ELECTRICAL PARTS— 4051 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eft Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R303 


315-0104-00 


R304 


315-0104-00 


R307 


315-0752-00 


R308 


315-0752-00 


R309 


315-0512-00 


R310 


315-0512-00 


R371 


315-0102-00 


R391 


315-0472-00 


R392 


315-0472-00 


R393 


315-0473-00 


R394 


315-0473-00 


R421 


315-0203-00 


R431 


315-0102-00 


R451 


315-0103-00 


R452 


315-0103-00 


R453 


315-0103-00 


R454 


315-0103-00 


R455 


315-0512-00 


R462 


315-0473-00 


R463 


315-0103-00 


R464 


315-0473-00 


R465 


321-0329-00 


R466 


315-0183-00 


R467 


315-0822-00 


R482 


321-0380-00 


R490 


315-0910-00 


R491 


315-0512-00 


R492 


315-0202-00 


R493 


315-0201-00 


R494 


307-0111-00 


R521 


315-0203-00 


R531 


315-0103-00 


R541 


315-0472-00 


R542 


315-0103-00 


R551 


315-0103-00 


R552 


315-0103-00 


R561 


315-0103-00 


R562 


321-0337-00 


R563 


321-0327-00 


R564 


315-0473-00 


R565 


321-0228-00 


R566 


315-0205-00 


R567 


315-0112-00 


R570 


321-0242-00 


R571 


321-0289-00 


R572 


321-0318-00 


R573 


311-1232-00 


R574 


315-0824-00 


R580 


315-0102-00 


R581 


321-0395-00 


R582 


315-0681-00 


R583 


315-0134-00 


R584 


321-0285-00 



RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 
RES. 
RES. 

RES. 
RES. 
RES. 



FXD,CMPSN:100K OHM,5%,0.25W 
FXD,CMPSN:100K OHM,5%,0.25W 
FXD,CMPSN:7.5K OHM,5%,0.25W 
FXD,CMPSN:7.5K OHM,5%,0.25W 
FXD,CMPSN:5.1K OHM,5%,0.25W 

FXD,CMPSN:5.1K OHM f 5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:47K OHM,5%,0.25W 

FXD,CMPSN:47K OHM,5%,0.25W 
FXD,CMPSN:20K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 

FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:5.1K OHM r 5%,0.25W 
FXD,CMPSN:47K OHM,5%,0.25W 
FXD,CMPSN:10K OHM, 5% ,0. 25W 

FXD,CMPSN:47K OHM,5%,0.25W 
FXD,FILM:26.1K OHM,1%,0. 125W 
FXD,CMPSN:18K OHM,5%,0.25W 
FXD,CMPSN:8.2K OHM,5%,0.25W 
FXD,FILM:88.7K OHM,l% ,0. 125W 

FXD,CMPSN:91 OHM,5%,0.25W 
FXD,CMPSN:5.1K OHM,5%,0.25W 
FXD,CMPSN:2K OHM,5%,0.25W 
FXD,CMPSN:200 OHM,5%,0.25W 
FXD,CMPSN:3.6 OHM,5%,0.25W 

FXD,CMPSN:20K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:4.7K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 

FXD,CMPSN:10K OHM,5%,0.25W 
FXD,CMPSN:10K OHM,5%,0.25W 
FXD,FILM:31.6K OHM,l% ,0. 125W 
FXD,FILM:24.9K OHM,l% ,0. 125W 
FXD,CMPSN:47K OHM,5%,0.25W 

FXD,FILM:2.32K OHM,l% ,0. 125W 
FXD,CMPSN:2M OHM,5%,0.25W 
FXD,CMPSN:1.1K OHM,5%,0.25W 
FXD,FILM:3.24K OHM,l% ,0. 125W 
FXD,FILM:10K OHM,1%,0. 125W 

FXD,FILM:20K OHM,1%,0. 125W 
VAR,NONWIR:50K OHM, 20% ,0. 50W 
FXD,CMPSN:820K OHM,5%,0.25W 
FXD,CMPSN:1K OHM,5%,0.25W 
FXD,FILM:127K OHM, 1% ,0. 125W 

FXD,CMPSN:680 OHM,5%,0.25W 
FXD,CMPSN:130K OHM,5%,0.25W 
FXD,FILM:9.09K OHM, 1% ,0. 125W 



01121 CB1045 

01121 CB1045 

01121 CB7525 

01121 CB7525 

01121 CB5125 

01121 CB5125 

01121 CB1025 

01121 CB4725 

01121 CB4725 

01121 CB4735 

01121 CB4735 

01121 CB2035 

01121 CB1025 

01121 CB1035 

01121 CB1035 

01121 CB1035 

01121 CB1035 

01121 CB5125 

01121 CB4735 

01121 CB1035 

01121 CB4735 

91637 MFF1816G26101F 

01121 CB1835 

01121 CB8225 

91637 MFF1816G88701F 

01121 CB9105 

01121 CB5125 

01121 CB2025 

01121 CB2015 

01121 CB36G5 

01121 CB2035 

01121 CB1035 

01121 CB4725 

01121 CB1035 

01121 CB1035 

01121 CB1035 

01121 CB1035 

91637 MFF1816G31601F 

91637 MFF1816G24901F 

01121 CB4735 

91637 MFF1816G23200F 

01121 CB2055 

01121 CB1125 

91637 MFF1816G32400F 

91637 MFF1816G10001F 

91637 MFF1816G20001F 

32997 3386F-T04-503 

01121 CB8245 

01121 CB1025 

91637 MFF1816G12702F 

01121 CB6815 

01121 CB1345 

91637 MFF1816G90900F 



5-36 



4051 SERVICE VOL. 2 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Mode! No. 
CktNo. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



R585 


315-0102-00 


R586 


315-0681-00 


R587 


315-0202-00 


R588 


315-0621-00 


R589 


315-0102-00 


R590 


315-0102-00 


R591 


315-0474-00 


R593 


315-0564-00 


R594 


321—0155-00 


R595 


321-0612-00 


R596 


315-0104-00 


R597 


311-1224-00 


U21 


156-0317-00 


U100 


156-0158-00 


U121 


156-0317-00 


U131 


156-0112-00 


U221 


156-0383-00 


U231 


156-0487-00 


U301 


156-0096-00 


U311 


156-0096-00 


U351 


156-0382-00 


U361 


156-0387-00 


U371 


156-0388-00 


U381 


156-0382-00 


U391 


156-0371-00 


U421 


156-0385-00 


U431 


156-0112-00 


U481 


156-0487-00 


U491 


156-0383-00 


U495 


156-0388-00 


U581 


156-0158-00 


U591 


156-0158-00 


VR464 


152-0226-00 


VR567 


152-0127-00 


VR568 


152-0127-00 



RES.,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:680 OHM,5%,0.25W 
KES.,FXD,CMPSN:2K OHM,5%,0.25W 
RES. ,FXD,CMPSN:620 OHM,5%,0,25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 

RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:470K OHM,5%,0.25W 
RES. ,FXD,CMPSN:560K OHM,5%,0.25W 
RES. ,FXD,FILM:4Q2 OHM, 1%,0. 125W 
RES. ,FXD,FILM:500 OHM,1%,0. 125W 

RES. ,FXD,CMPSN:100K OHM,5%,0.25W 
RES. ,VAR,NONWIR:500 OHM,20%,0.50W 

MICROCIRCUIT, LI : OPERATIONAL AMPLIFLIER 
MICROCIRCUIT,LI:DUAL OPERATIONAL AMPLIFIER 
MICROCIRCUIT, LI : OPERATIONAL AMPLIFLIER 
MICROCIRCUIT, DI: QUAD 2-INPUT POS NAND GATE 
MICROCIRCUIT, DI: QUAD 2-INPUT NOR GATE 

MICROCIRCUIT, LI: DUAL RETRIG,ONE SHOT 
MICROCIRCUIT , LI : VOLTAGE COMPARATOR 
MICROCIRCUIT , LI : VOLTAGE COMPARATOR 
MICROCIRCUIT, DI: QUAD 2-INPUT NAND GATE 
MICROCIRCUIT, DI: DUAL J-K NEG EDGE TRIG 

MICROCIRCUIT, DI: DUAL D-TYPE FLIP-FLOP 
MICROCIRCUIT, DI: QUAD 2-INPUT NAND GATE 
MICROCIRCUIT, DI: QUAD 2-INPUT NAND ST 
MICROCIRCUIT, DI :HEX. INVERTER 
MICROCIRCUIT, DI: QUAD 2-INPUT POS NAND GATE 

MICROCIRCUIT, LI: DUAL RETRIG,ONE SHOT 
MICROCIRCUIT, DI: QUAD 2-INPUT NOR GATE 
MICROCIRCUIT, DI: DUAL D-TYPE FLIP-FLOP 
MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 
MICROCIRCUIT, LI: DUAL OPERATIONAL AMPLIFIER 

SEMICOND DEVICE:ZENER,0.4W,5.1V,5% 
SEMICOND DEVICE : ZENER ,0.4W,7.5V,5% 
SEMICOND DEVICE : ZENER, 0.4W, 7.5V, 5% 



01121 CB-1025 

01121 CB6815 

01121 CB2025 

01121 CB6215 

01121 CB1025 

01121 CB1025 

01121 CB4745 

01121 CB5645 

91637 MFF1816G402R0F 

91637 MFF1816G500R0F 

01121 CB1045 

32997 3386F-T04-501 

34371 HA2-2625-5 

80009 156-0158-00 

34371 HA2-2625-5 

01295 SN7426N 

01295 SN74LS02N 

07263 96L02PC 

27014 LM311H 

27014 LM311H 

01295 SN74LS00N 

01295 SN74LS73N 

01295 SN74LS74N 

01295 SN74LS00N 

01295 SN74132N 

01295 SN74LS04N 

01295 SN7426N 

07263 96L02PC 

01295 SN74LS02N 

01295 SN74LS74N 

80009 156-0158-00 

80009 156-0158-00 

81483 69-6584 

04713 1N958B 

04713 1N958B 



A7 CKT BOARD ASSY: STATUS W/MICRO SWITCH 



DS1 


150-0057-01 






Ql 


151-0313-00 


B010151 


B041005 


Ql 


151-0628-00 


B041006 




Q2 


151-0313-00 


B010100 


B041005 


Q2 


151-0628-00 


B041006 




Rl 


315-0475-00 


XB041006 




R2 


315-0475-00 


XB041006 




R3 


315-0102-00 


XB041006 




R5 


315-0102-00 






SI 


260-1748-00 






S2 


260-1748-00 







LAMP , INCAND': 5V , . 115 A 

TRANS ISTOR:SILICON,NPN 
TRANSISTOR: SILICON, NPN 
TRANS ISTOR : S ILICON , NPN 
TRANSISTOR: SILICON, NPN 

RES.,FXD,CMPSN:4.7M OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7M OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:1K OHM,5%,0.25W 

SWITCH, PUSH :SPDT,0.1A,125VAC,LVR ACTR 
SWITCH , PUSH : SPDT , . 1A , 125VAC , LVR ACTR 



87034 17AS15 

80009 151-0313-00 

07263 FPT120A 

80009 151-0313-00 

07263 FPT120A 

01121 CB4755 

01121 CB4755 

01121 CB1025 

01121 CB1025 

01963 E63-02HB 

01963 E63-02HB 



4051 SERVICE VOL. 2 



5-37 



REPLACEABLE ELECTRICAL PARTS— 4051 



Tektronix Serial/Model No. 
CktNo. Part No. Eff Dscont 



Name & Description 



Mfr 
Code 



Mfr Part Number 



A8 OCT BOARD ASSY : INDICATOR LIGHT 



A8 CKT BOAR 



DS60 


150-0180-00 


DS61 


150-0180-00 


DS62 


150-0180-00 


DS63 


150-0180-00 


R60 


315-0470-00 


R61 


315-0470-00 


R62 


315-0470-00 


R63 


315-0300-00 



LAMP , INCAND : 12V , . 06A 
LAMP , INCAND : 1 2 V , . 06A 
LAMP , INCAND : 12V , . 06A 
LAMP , INCAND : 12V , . 06A 

RES.,FXD,CMPSN:47 OHM,5%,0.25W 
RES.,FXD,CMPSN:47 OHM,5%,0.25W 
RES. ,FXD,CMPSN:47 OHM,5%,0.25W 
RES. ,FXD,CMPSN:30 OHM,5%,0.25W 



71744 CM7219 

71744 CM7219 

71744 CM7219 

71744 CM7219 

01121 CB4705 

01121 CB4705 

01121 CB4705 

01121 CB3005 



CHASSIS PARTS 



B1001 


119-0721-00 


B1090 


147-0045-00 


B1092 


147-0046-00 


C1091 


283-0000-00 


C1092 


283-0000-00 



L1012A,B 119-0745-00 
LS60 119-0305-00 



Q1036 


151-0423-00 


Q1039 


151-0423-00 


Q1044 


151-0423-00 


01059 


151-0423-00 


Q1067 


151-0423-00 


Q1069 


151-0349-00 


Q1074 


151-0373-00 


Q1084 


151-0349-00 


Q1096 


151-0373-00 


Q1091 


151-0607-00 


Q1092 


151-0606-00 


R1050 


311-1099-00 


VI 


154-0624-11 



FAN, VENTILATING : 
MOTOR, DC :6V, 17000 RPM 
MOTOR , DC : TAPE , DRIVE ,12V 

CAP. ,FXD,CER DI:0.001UF, +100-0%, 500V 
CAP. ,FXD,CER DI:0.001UF, +100-0%, 500V 

COIL, TUBE DEFL: 

LOUDSPEAKER, PM: PERMANENT MAGNET, 4 5 OHM,2W 



80009 


119-0721-00 


50778 


OBD 


98939 


9413B254 


72982 


831-516E102P 


72982 


831-516E102P 


80009 


119-0745-00 



TRANSISTOR 
TRANSISTOR 
TRANSISTOR 
TRANSISTOR 
TRANSISTOR 



:SILICON,NPN 
:SILICON,NPN 
: SILICON, NPN 
:SILICON,NPN 
[SILICON, NPN 



TRANSISTOR: SILICON, NPN, SEL FROM MJE2801 

TRANSISTOR: SILICON, PNP 

TRANSISTOR: SILICON, NPN, SEL FROM MJE2801 

TRANSISTOR: SILICON, PNP 

TRANSISTOR: SILICON, PNP 

TRANSISTOR: SILICON, NPN 

RES. ,VAR,NONWIR:100K OHM,0.5W 

ELECTRON TUBE: CRT 



07109 35A45C 

01295 TIP50 

01295 TIP50 

01295 TIP50 

01295 TIP50 

01295 TIP50 

80009 151-0349-00 

80009 151-0373-00 

80009 151-0349-00 

80009 151-0373-00 

01295 TIP147 

01295 TIP142 

01121 WA1G040S104AZ 

80009 154-0624-11 



5-38 



4051 SERVICE VOL. 2 



Section 6—4051 



REPLACEABLE 



PARTS ORDERING INFORMATION 

Replacement parts are available from or through your local 
Tektronix, Inc. Field Office or representative. 

Changes to Tektronix instruments are sometimes made to 
accommodate improved components as they become available, 
and to give you the benefit of the latest circuit improvements 
developed in our engineering department. It is therefore 
important, when ordering parts, to include the following 
information in your order: Part number, instrument type or 
number, serial number, and modification number if applicable. 

If a part you have ordered has been replaced with a new or 
improved part, your local Tektronix, Inc. Field Office or 
representative will contact you concerning any change in part 
number. 

Change information, if any, is located at the rear of this 



SPECIAL NOTES AND SYMBOLS 

X000 Part first added at this serial number 

00X Part removed after this serial number 

FIGURE AND INDEX NUMBERS 

Items in this section are referenced by figure and index 
numbers to the illustrations. 



INDENTATION SYSTEM 

This mechanical parts list is indented to indicate item 
relationships. Following is an example of the indentation system 
used in the description column. 



12 3 4 5 



Name & Description 



Assembly and/or Component 

Attaching parts for Assembly and/or Component 

Detail Part of Assembly and/or Component 
Attaching parts for Detail Part 

Parts of Detail Part 

Attaching parts for Parts of Detail Part 



Attaching Parts always appear in the same indentation as 
the item it mounts, while the detail parts are indented to the right. 
Indented items are part of, and included with, the next higher 
indentation. The separation symbol — * — indicates the end of 
attaching parts. 

Attaching parts must be purchased separately, unless otherwise 
specified. 



ITEM NAME 

In the Parts List, an Item Name is separated from the 
description by a colon (:). Because of space limitations, an Item 
Name may sometimes appear as incomplete. For further Item 
Name identification, the U.S. Federal Cataloging Handbook H6-1 
can be utilized where possible. 



ABBREVIATIONS 





INCH 


ELCTRN 


ELECTRON 


IN 


INCH 


SE 


SINGLE END 


# 


NUMBER SIZE 


ELEC 


ELECTRICAL 


INCAND 


INCANDESCENT 


SECT 


SECTION 


ACTR 


ACTUATOR 


ELCTLT 


ELECTROLYTIC 


INSUL 


INSULATOR 


SEMICOND SEMICONDUCTOR 


ADPTR 


ADAPTER 


ELEM 


ELEMENT 


INTL 


INTERNAL 


SHLD 


SHIELD 


ALIGN 


ALIGNMENT 


EPL 


ELECTRICAL PARTS LIST 


LPHLDR 


LAMPHOLDER 


SHLDR 


SHOULDERED 


AL 


ALUMINUM 


EQPT 


EQUIPMENT 


MACH 


MACHINE 


SKT 


SOCKET 


ASSEM 


ASSEMBLED 


EXT 


EXTERNAL 


MECH 


.MECHANICAL 


SL 


SLIDE 


ASSY 


ASSEMBLY 


FIL 


FILLISTER HEAD 


MTG 


MOUNTING 


SLFLKG 


SELF-LOCKING 


ATTEN 


ATTENUATOR 


FLEX 


FLEXIBLE 


NIP 


NIPPLE 


SLVG 


SLEEVING 


AWG 


AMERICAN WIRE GAGE 


FLH 


FLAT HEAD 


NON WIRE 


NOT WIRE WOUND 


SPR 


SPRING 


BD 


BOARD 


FLTR 


FILTER 


OBD 


ORDER BY DESCRIPTION 


SQ 


SQUARE 


BRKT 


BRACKET 


FR 


FRAME or FRONT 


OD 


OUTSIDE DIAMETER 


SST 


STAINLESS STEEL 


BRS 


BRASS 


FSTNR 


FASTENER 


OVH 


OVAL HEAD 


STL 


STEEL 


BRZ 


BRONZE 


FT 


FOOT 


PH BRZ 


PHOSPHOR BRONZE 


SW 


SWITCH 


BSHG 


BUSHING 


FXD 


FIXED 


PL 


PLAIN or PLATE 


T 


TUBE 


CAB 


CABINET 


GSKT 


GASKET 


PLSTC 


PLASTIC 


TERM 


TERMINAL 


CAP 


CAPACITOR 


HDL 


HANDLE 


PN 


PART NUMBER 


THD 


THREAD 


CER 


CERAMIC 


HEX 


HEXAGON 


PNH 


PAN HEAD 


THK 


THICK 


CHAS 


CHASSIS 


HEX HD 


HEXAGONAL HEAD 


PWR 


POWER 


TNSN 


TENSION 


CKT 


CIRCUIT 


HEX SOC 


HEXAGONAL SOCKET 


RCPT 


RECEPTACLE 


TPG 


TAPPING 


COMP 


COMPOSITION 


HLCPS 


HELICAL COMPRESSION 


RES 


RESISTOR 


TRH 


TRUSS HEAD 


CONN 


CONNECTOR 


HLEXT 


HELICAL EXTENSION 


RGD 


RIGID 


V 


VOLTAGE 


COV 


COVER 


HV 


HIGH VOLTAGE 


RLF 


RELIEF 


VAR 


VARIABLE 


CPLG 


COUPLING 


IC 


INTEGRATED CIRCUIT 


RTNR 


RETAINER 


W/ 


WITH 


CRT 


CATHODE RAY TUBE 


ID 


INSIDE DIAMETER 


SCH 


SOCKET HEAD 


WSHR 


WASHER 


DEG 


DEGREE 


IDENT 


IDENTIFICATION 


SCOPE 


OSCILLOSCOPE 


XFMR 


TRANSFORMER 


DWR 


DRAWER 


IMPLR 


IMPELLER 


SCR 


SCREW 


XSTR 


TRANSISTOR 



4051 SERVICE VOL. 2 



6-1 



REPLACEABLE MECHANICAL PARTS— 4051 



CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER 



Mfr. Code 



Manufacturer 



Address 



City, State, Zip 



OOOAC LINCOLN & ALLEN COMPANY 

OOOAE GARDNER SPRING COMPANY 

OOOAH STANDARD PRESSED STEEL CO., UNBRAKO DIV. 

OOOOP 3M COMPANY, DATA PRODUCTS DIVISION 

00779 AMP, INC. 

01295 TEXAS INSTRUMENTS, INC., SEMICONDUCTOR 
GROUP 

01881 ANACONDA AMERICAN BRASS COMPANY, A DIV. 

OF ANACONDA COMPANY 
01963 CHERRY ELECTRICAL PRODUCTS CORPORATION 
04713 MOTOROLA, INC., SEMICONDUCTOR PROD. DIV. 
04963 MINNESOTA MINING AND MFG. CO. , ADHESIVES 

COATINGS AND SEALERS DIVISION 
05574 VIKING INDUSTRIES, INC. 
05820 WAKEFIELD ENGINEERING, INC. 
07111 PNEUMO DYNAMICS CORPORATION 
08261 SPECTRA-STRIP CORP. 
09922 BURNDY CORPORATION 
10389 CHICAGO SWITCH, INC. 
11897 PLASTIGLIDE MFG. CORPORATION 
11983 NORTRONICS COMPANY, INC. 
12327 FREEWAY CORPORATION 

12624 NORTON CO. , TAPE DIV. , SEALANT OPERATION 
20999 MINNESOTA MINING AND MFG CO. , INDUST 

RIAL ELECTRICAL PRODUCTS DIVISON 
22526 BERG ELECTRONICS, INC. 
25941 THIOKOL CHEMICAL CORP., CHEMICAL DIV., 

PANELYTE PLANT 
26365 GRIES REPRODUCER CO. , DIV. OF COATS 

AND CLARK, INC. 
27264 MOLEX PRODUCTS CO. 
29587 BUNKER-RAMO CORP. , AMPHENOL 

INDUSTRIAL DIV. 
52675 WILSON, J. A. LIGHTING, DIVISION OF 

WILSON RESEARCH CORPORATION 
52833 KEYTRONIC CORPORATION 
52905 SIMPLEX MFG. COMPANY 
54492 CINCH COMPANY 
59730 THOMAS AND BETTS COMPANY 
70276 ALLEN MFG. CO. 

70485 ATLANTIC INDIA RUBBER WORKS, INC. 
71468 ITT CANNON ELECTRIC 
71785 TRW, CINCH CONNECTORS 
73743 FISCHER SPECIAL MFG. CO. 
73803 TEXAS INSTRUMENTS, INC., METALLURGICAL 

MATERIALS DIV. 
74445 HOLO-KROME CO. 
74921 ITEN FIBRE CO., THE 
75037 MINNESOTA MINING AND MFG. CO., ELECTRO 

PRODUCTS DIVISION 
75915 LITTELFUSE, INC. 
77250 PHEOLL MANUFACTURING CO. , DIVISION 

OF ALLIED PRODUCTS CORP. 
77969 RUBBERCRAFT CORP. OF CALIF., LTD. 
78189 ILLINOIS TOOL WORKS, INC. 

SHAKEPROOF DIVISION 
79136 WALDES, KOHINOOR, INC. 
80009 TEKTRONIX, INC. 
83385 CENTRAL SCREW CO. 

86445 PENN FIBRE AND SPECIALTY CO. , INC. 
95937 FEDERAL TELEVISION DIV., 

CARDWELL CONDENSER CORPORATION 
95987 WECKESSER CO. , INC. 
98291 SEALECTRO CORP. 



3460 NW INDUSTRIAL 
1115 N UTICA 
8535 DICE ROAD 
300 LEWIS ROAD 
P O BOX 3608 

P O BOX 5012, 13500 N CENTRAL 
EXPRESSWAY 

414 MEADOW STREET 

3600 SUNSET AVENUE 

5005 E MCDOWELL RD,PO BOX 20923 

3M CENTER 

21001 NORDHOFF STREET 

AUDUBON ROAD 

4800 PRUDENTIAL TOWER 

7100 LAMPSON AVE. 

RICHARDS AVENUE 

2035 WABANSIA AVE. 

P O BOX 867, 1757 STANFORD ST. 

8101 10TH AVENUE NORTH 

9301 ALLEN DRIVE 

12 BENNETT DRIVE 

3M CENTER 

YOUK EXPRESSWAY 

P. O. BOX 1296 

125 BEECHWOOD AVE. 
5224 KATRINE AVE. 

1830 S. S4TH AVE. 

PO BOX 5037, 2001 PENINSULA DR. 

BLDG. 14 SPOKANE INDUSTRIAL PK. 

5224 NE 42ND AVENUE 

6126 MONTECITO BLVD. ,PO BOX 167 

36 BUTLER ST. 

P. O. DRAWER 570 

571 W. POLK ST. 

666 E. DYER RD. 

1501 MORSE AVENUE 

446 MORGAN ST. 

34 FOREST STREET 

31 BROOK ST. WEST 

4001 BENEFIT AVE., P O BOX 9 

3M CENTER 

800 E. NORTHWEST HWY 



5700 W. 
1800 W. 



ROOSEVELT RD. 
220TH ST. 



ST. CHARLES ROAD 

47-16 AUSTEL PLACE 

P O BOX 500 

2530 CRESCENT DR. 

2032 E. WESTMORELAND ST. 

80 E MONTAUK HIGHWAY 
4444 WEST IRVING PARK RD. 
225 HOYT 



PORTLAND, OR 97210 
TULSA, OK 74110 
SANTA FE SPRINGS, CA 90670 
CAMARILLO, CA 97010 
HARRISBURG, PA 17105 



DALLAS, TX 75222 

WATERBURY, CT 06720 
WAUKEGAN, IL 60085 
PHOENIX, AZ 85036 

ST. PAUL, MN 55101 
CHATSWORTH, CA 91311 
WAKEFIELD, MA 01880 
BOSTON, MA 02199 
GARDEN GROVE, CA 92642 
NORWALK, CT 06852 
CHICAGO, IL 60647 
SANTA MONICA, CA 90406 
MINNEAPOLIS, MN 55427 
CLEVELAND, OH 44125 
GRANVILLE, NY 12832 

ST. PAUL, MN 55101 

NEW CUMBERLAND, PA 17070 

TRENTON, NJ 08607 

NEW ROCHELLE, NY 10802 
DOWNERS GROVE, IL 60515 

CHICAGO, IL 60650 

ERIE, PA 16512 
SPOKANE, WA 99216 
PORTLAND, OREGON 97218 
SANTA ROSA, CA 95402 
ELIZABETH, NJ 07207 
HARTFORD, CT 06101 
CHICAGO, IL 60607 
SANTA ANA, CA 92702 
ELK GROVE VILLAGE, IL 60007 
CINCINNATI, OH 45206 

ATTLEBORO, MA 02703 
HARTFORD, CT 06110 
ASHTABULA, OH 44004 

ST. PAUL, MN 55101 
DES PLAINES, IL 60016 

CHICAGO, IL 60650 
TORRANCE, CA 90507 

ELGIN, IL 60120 
LONG ISLAND CITY, NY 11101 
BEAVERTON, OR 97077 
BROADVIEW, IL 60153 
PHILADELPHIA, PA 19134 

LINDENHURST, NY 11757 
CHICAGO, IL 60641 
MAMARONECK, NY 10544 



6-2 



4051 SERVICE VOL. 2 



REPLACEABLE MECHANICAL PARTS— 4051 



Fig. & 
Index 
No. 



Tektronix 
Part No. 



Serial/Mode! No. 
Eft Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 

Code Mfr Part Number 



1-1 

-2 
-3 
_4 

-5 
-6 



-15 



-16 



390-0490-01 

212-0507-00 
354-0290-01 
212-0621-00 
210-0805-00 
210-0010-00 



n 


211-0542-00 


■8 


210-0009-00 


■9 


210-0803-00 


•10 


333-2063-00 


■11 


211-0019-00 


■12 


366-1502-00 


■13 
■14 


366-1671-00 



366-1712-01 
366-1712-02 
366-1712-03 
366-1712-04 
366-1712-05 
366-1712-06 
366-1712-07 
366-1712-08 
366-1712-09 
366-1712-10 
366-1712-11 
366-1712-12 
366-1712-13 
366-1712-14 
366-1712-15 
366-1712-16 
366-1712-17 
366-1712-18 
366-1712-19 
366-1712-20 
366-1712-21 
366-1712-22 
366-1712-23 
366-1712-24 
366-1712-25 
366-1712-26 
366-1712-27 
366-1712-28 
366-1712-29 
366-1712-30 
366-1712-31 
366-1712-32 
366-1712-33 
366-1712-34 
366-1712-35 
366-1712-36 
366-1712-37 
366-1712-38 
366-1712-39 
366-1712-40 
366-1712-41 



12 

10 
10 

1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 
1 



CABINET TOP: ASSY, CALCULATOR 

(ATTACHING PARTS) 
SCREW, MACHINE :10-32 X 0.375 INCH,PNH STL 
RING, RETAINING: 

BOLT, MACHINE: 10-32 X 3. 75, HEX HD,SST 
WASHER, FLAT: 0.204 ID X 0.438 INCH OD,STL 
WASHER, LOCK: INT, 0.20 ID X0.376" OD,STL 

KEYBOARD: CALCULATOR, W/KEY CAPS (SEE A5 EPL) 

(ATTACHING PARTS) 
SCREW, MACHINE: 6-3 2 X 0.312 INCH,TRH STL 
WASHER,LOCK:EXT,0.193ID X0.40" OD,STL 
WASHER, FLAT:0. 15 ID X 0.375 INCH OD,STL 

KEYBOARD ASSY INCLUDES: 
PANEL , FRONT ; KEYBOARD 

(ATTACHING PARTS) 
SCREW, MACHINE :4-40 X 1.0 INCH,PNH STL 

PUSH BUTTON: BLANK, LIGHT GRAY 

PUSH BUTTON: BLANK, DARK GRAY 

KEYBOARD: (SEE A5 EPL) 

. PUSHBUTTON: DARK GRAY, HOME PAGE 

. PUSHBUTTON: DARK GRAY, / 

, PUSHBUTTON: LIGHT GRAY,'/1 

. PUSHBUTTON: LIGHT GRAY,"/2 

. PUSHBUTTON: LIGHT GRAY,#/3 

. PUSHBUTTON .-LIGHT GRAY,$/4 

. PUSHBUTTON: LIGHT GRAY,%/5 

. PUSHBUTTON: LIGHT GRAY, AND/6 

. PUSHBUTTON: LIGHT GRAY,'/? 

. PUSHBUTTON : LIGHT GRAY, (/8 

. PUSHBUTTON: LIGHT GRAY,)/9 

. PUSHBUTTON: LIGHT GRAY,0 

. PUSHBUTTON: LIGHT GRAY,*/: 

. PUSHBUTTON: LIGHT GRAY,=/- 

. PUSHBUTTON: DARK GRAY, / 

. PUSHBUTTON: DARK GRAY, BACK SPACE 

, PUSHBUTTON: DARK GRAY, ( 

. PUSHBUTTON: LIGHT GRAY, ENTER EXP 

. PUSHBUTTON; DARK GRAY,) 

. PUSHBUTTON: DARK GRAY, 

. PUSHBUTTON: DARK GRAY, ESC 

, PUSHBUTTON: DARK GRAY, /- 

. PUSHBUTTON: LIGHT GRAY,Q 

. PUSHBUTTON: LIGHT GRAY,W 

. PUSHBUTTON: LIGHT GRAY,E 

. PUSHBUTTON: LIGHT GRAY,R 

. PUSHBUTTON: LIGHT GRAY,T 

. PUSHBUTTON: LIGHT GRAY,Y 

. PUSHBUTTON: LIGHT GRAY,U 

. PUSHBUTTON: LIGHT GRAY, I 

. PUSHBUTTON: LIGHT GRAY,0 

. PUSHBUTTON: LIGHT GRAY,P 

. PUSHBUTTON: LIGHT GRAY, /@ 

. PUSHBUTTON: DARK GRAY,LF 

. PUSHBUTTON: DARK GRAY, RETURN 

. PUSHBUTTON: LIGHT GRAY, 7 

. PUSHBUTTON: LIGHT GRAY, 8 

. PUSHBUTTON: LIGHT GRAY, 9 

. PUSHBUTTON: DARK GRAY,/ 

. PUSHBUTTON: DARK GRAY, TAB 

. PUSHBUTTON: DARK GRAY, CTRL 



80009 390-0490-01 

83385 OBD 

80009 212-0621-00 

12327 OBD 

78189 1210-00-00-0541C 



83385 OBD 
78189 1110-00 
12327 OBD 



80009 333-2063-00 



83385 


OBD 


80009 


366-1502-00 


80009 


366-1671-00 


01963 


028-6886 


01963 


028-1716 


01963 


028-6680 


01963 


028-6681 


01963 


028-6682 


01963 


028-6683 


01963 


028-6684 


01963 


028-6685 


01963 


028-6686 


01963 


028-6687 


01963 


028-6688 


01963 


028-6689 


01963 


028-6690 


01963 


028-6691 


01963 


028-1746 


01963 


028-2017 


01963 


028-6675 


01963 


028-6889 


01963 


028-6675 


01963 


028-6676 


01963 


028-5087 


01963 


028-6672 


01963 


028-6692 


01963 


028-6692 


01963 


028-6694 


01963 


028-6695 


01963 


028-6696 


01963 


028-6697 


01963 


028-6698 


01963 


028-6699 


01963 


028-6700 


01963 


028-6701 


01963 


028-6702 


01963 


028-6673 


01963 


028-3647 


01963 


028-6723 


01963 


028-6724 


01963 


028-6725 


01963 


028-6677 


01963 


028-2016 


01963 


028-3106 



4051 SERVICE VOL. 2 



6-3 



REPLACEABLE MECHANICAL PARTS-4051 



Fig. & 

Index Tektronix 

No. Part No. 

1- 366-1712-78 
366-1712-42 
366-1712-43 
366-1712-44 
366-1712-45 
366-1712-46 
366-1712-47 
366-1712-48 
366-1712-49 
366-1712-50 
366-1712-51 
366-1712-52 
366-1712-53 
366-1712-54 
366-1712-55 
366-1712-56 
366-1712-57 
-17 366-1712-58 
366-1712-59 
366-1712-60 
366-1712-61 
366-1712-62 
366-1712-63 
366-1712-64 
366-1712-65 
366-1712-66 
366-1712-67 
366-1712-68 
366-1712-69 
366-1712-70 
366-1712-71 
366-1712-72 
366-1712-73 
366-1712-74 
366-1712-75 
366-1712-76 
366-1712-77 
366-1712-78 
-18 260-1393-01 

-19 

-20 

260-1393-00 

-21 

-22 334-2634-00 
333-2068-01 
-23 200-1874-00 
-24 200-1875-00 
343-0588-00 
-25 333-2068-00 
-26 358-0561-00 

-27 

-28 354-0316-00 



Serial/Model No. 
Eft Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



1 . . PUSHBUTTON: LIGHT GRAY, SPACE BAR 

1 . . PUSHBUTTON: LIGHT GRAY, A 

1 . . PUSHBUTTON: LIGHT GRAY,S 

1 . . PUSHBUTTON: LIGHT GRAY,D 

1 . . PUSHBUTTON: LIGHT GRAY,F 

1 . . PUSHBUTTON: LIGHT GRAY,G 

1 . . PUSHBUTTON: LIGHT GRAY,H 

1 . . PUSHBUTTON: LIGHT GRAY, J 

1 . . PUSHBUTTON: LIGHT GRAY,K 

1 . . PUSHBUTTON: LIGHT GRAY,L 

1 . . PUSHBUTTON: LIGHT GRAY,+/; 

1 . . PUSHBUTTON: DARK GRAY,1/ 

1 . . PUSHBUTTON: DARK GRAY , -/RUB , OUT 

1 . . PUSHBUTTON: LIGHT GRAY, 4 

1 . . PUSHBUTTON: LIGHT GRAY, 5 

1 . . PUSHBUTTON: LIGHT GRAY, 6 

1 . . PUSHBUTTON: DARK GRAY,* 

1 . . PUSHBUTTON: DARK GRAY , TTY/LOCK 

1 . . PUSHBUTTON: DARK GRAY, SHIFT 

1 . . PUSHBUTTON: LIGHT GRAY,Z 

1 . . PUSHBUTTON: LIGHT GRAY,X 

1 . . PUSHBUTTON: LIGHT GRAY,C 

1 . . PUSHBUTTON: LIGHT GRAY,V 

1 . . PUSHBUTTON: LIGHT GRAY,B 

1 . . PUSHBUTTON: LIGHT GRAY,N 

1 . . PUSHBUTTON: LIGHT GRAY,M 

1 . . PUSHBUTTON: LIGHT GRAY /, 

1 . . PUSHBUTTON: LIGHT GRAY, /. 

1 . . PUSHBUTTON: LIGHT GRAY,?/ 

1 . . PUSHBUTTON: DARK GRAY, SHIFT 

1 . . PUSHBUTTON: GOLD, BREAK 

1 . . PUSHBUTTON: LIGHT GRAY,1 

1 . . PUSHBUTTON: LIGHT GRAY, 2 

1 . . PUSHBUTTON: LIGHT GRAY, 3 

1 . . PUSHBUTTON: DARK GRAY,- 

1 . . PUSHBUTTON: LIGHT GRAY,0 

1 . . PUSHBUTTON: LIGHT GRAY,. 

1 . . PUSHBUTTON: DARK GRAY,+ 

2 . . SWITCH, PUSH :SPST, NO, KYBD SW,HIGH ACTG F 
1 . . SWITCH, PUSH: 

75 . . SWITCH, PUSH: 

1 . . SWITCH, PUSH :SPST, NO KEYBOARD SWITCH 

1 . . SWITCH, PUSH: SPACE BAR 

1 MARKER, IDENT: MARKED 4051 

1 PANEL, FRONT: DISPLAY 

1 . BEZEL, TAPE CRTG-.GRAY PLASTIC ' 
5 . BEZEL, DSPL LT:GRAY PLASTIC 

2 . RETAINER, PANEL: 

1 . PANEL, FRONT: DISPLAY 

1 BUSHING, SLEEVE: 1.15 ID X 2.0L,SI,1.2 OD 

1 ELECTRON TUBE: (SEE VI EPL) 

1 . MOUNT, RESILIENT: CRT 



01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
01963 
04713 
01963 
01963 
01963 
01963 
80009 
80009 
80009 
80009 
80009 
80009 
80009 



028-3308 

028-6703 

028-6704 

028-6705 

028-6706 

028-6707 

028-6708 

028-6709 

028-6710 

028-6711 

028-6712 

028-6674 

028-6887 

028-6726 

028-3615 

028-6727 

028-6890 

028-6888 

028-0717 

028-6713 

028-6714 

028-6715 

028-6716 

028-6717 

028-6718 

028-6719 

028-6720 

028-6721 

028-6722 

028-0717 

028-6732 

028-6728 

028-6729 

028-6730 

028-6678 

028-0136 

028-6731 

028-6679 

M51-0101 

M61-0800 

M61-0120 

M61-0100 

M51-0106 

334-2634-00 

333-2068-01 

200-1874-00 

200-1875-00 

343-0588-00 

333-2068-00 

358-0561-00 



80009 354-0316-00 



6-4 



4051 SERVICE VOL. 2 



REPLACEABLE MECHANICAL PARTS— 4051 



Fig. & 

Index Tektronix Serial/Model No. 

No. Part No. Eff Dscont 



Qty 12 3 4 5 



Name & Description 



2- 



119-0708-00 



-1 211-0534-00 
-2 211-0551-00 
-3 210-0006-00 



-4 



-5 211-0507-00 



-6 


131-0608-00 


-7 


131-0589-00 


-8 


136-0220-00 




136-0237-00 


-9 


136-0514-00 


-10 


129-0539-00 


-11 


129-0295-00 


-12 


210-0055-00 


-13 


366-1629-01 


-14 


214-2316-00 


-15 


213-0054-00 


-16 


351-0455-00 


-17 


211-0012-00 


-18 


210-0586-00 


-19 


391-0139-00 


-20 


211-0513-00 




211-0514-00 


-22 


381-0365-00 


-22 


407-1697-00 


-23 


211-0510-00 




211-0513-00 


-24 


391-0144-00 


-25 


211-0093-00 


-26 


211-0564-00 


-27 


386-3554-00 


-28 


211-0164-00 




211-0093-00 


-29 


214-2430-00 


-30 


211-0248-00 




214-2419-00 


-31 


386-2823-00 


-32 


211-0206-00 




119-0421-03 


-33 


352-0161-08 




352-0161-09 



60 
12 

1 
2 
3 

7 
1 
8 
1 

1 



1 DRIVE, MAG TAPE: 

(ATTACHING PARTS) 

2 SCR,ASSEM,WSHR:6-32 X 0.312 INCH,PNH STL 

3 SCREW,MACHINE:6-32 X 0.562 INCH,PNH STL 
3 WASHER, LOCK :INTL, 0.146 IDX 0.288 OD,STL 

- . MAG TAPE DRIVE ASSEMBLY INCLUDES: 

1 . CKT BOARD ASSY: TAPE DRIVE (SEE A6 EPL) 

(ATTACHING PARTS) 
8 . SCREW, MACHINE:6-32 X 0.312 INCH,PNH STL 

- . . CKT BOARD ASSEMBLY INCLUDES: 
. CONTACT, ELEC: 0.3 65 INCH LONG 
. CONTACT, ELEC: 0.4 6 INCH LONG 
, SOCKET, PLUG-IN: 3 PIN, SQUARE 
. SOCKET, PLUG-IN: 8 CONTACT , ROUND 
. SOCKET, PLUG IN:MICROCIRCUIT,8 CONTACT 
POST,ELEC-MECH:6-32 THD EXT/INT, 1.250 L 
SPACER,POST:0.250 HEX X 0.894 INCH L,AL 
WASHER, LOCK: SPLIT, 0.145 ID X 0.253 OD,STL 
PUSH BUTTON: GRAY, EJECT 
LVR,CRTG EJECT:4.875 L, ALUMINUM 

(ATTACHING PARTS) 
1 . SCR,TPG,THD FOR:6-32 X 0.312 INCH,PNH STL 

1 . GUIDE, LEVER: EJECT 

(ATTACHING PARTS) 

2 . SCREW, MACHINE: 4 -40 X 0.375 INCH,PNH STL 
2 . NUT, PLAIN, EXT W.-4-40 X 0.25 INCH, STL 

2 . BLOCK, GUIDE: CARTRIDGE EJEC 

(ATTACHING PARTS FOR EACH) 
1 . SCREW, MACHINE :6-32 X 0.625 INCH,PNH STL 

1 . SCREW, MACHINE :6-32 X 0.750 INCH,PNH STL 

2 . BAR,CRTG EJECT: 2. 625 L,DELRIN 
1 . BRACKET, ANGLE: TAPE DECK 

(ATTACHING PARTS) 
1 . SCREW, MACHINE :6-32 X 0.375 INCH,PNH STL 
1 . SCREW, MACHINE:6-32 X" 0.625 INCH,PNH STL 

1 . BLOCK, SUPPORT .-HEAD ALIGNMENT 

(ATTACHING PARTS) 

2 . SCR,CAP,SOC HD:4-40 X 0.75 INCH L,STL 
2 . SCREW, CAP, SCH: 6-32 X 0.375"L HEX 

1 . PLATE, PROT: HEAD ALIGNMENT 

(ATTACHING PARTS) 
1 . SCREW, CAP, SCH: 4 -40 X 0.625 INCH,L STL 
1 . SCR,CAP,SOC HD:4-40 X 0.75 INCH L,STL 

1 . SPRING, HLCPS: 0.375 OD X 1.5 L,OPEN ENDS 

(ATTACHING PARTS) 
1 . SCREW, CAP, SCH:4-40 X 1.25 FLH,82 DEG,STL 

1 . PIN, SPRING: 0.5 L X 0.188 OD,AL 

1 . PLATE, HEAD MTG: 

(ATTACHING PARTS) 

2 . SCR,CAP,SOC HD:2-56 X 0.312 INCH, STL 

1 . HEAD,SPR: 

1 . . CONN BODY, PL, EL: 3 WIRE GRAY 

1 . . CONN BODY,PL,EL:3 WIRE WHITE 



Mfr 
Code 


Mfr Part Number 


80009 

83385 
83385 
78189 


119-0708-00 

OBD 
OBD 
1206-00-00-0541C 



83385 OBD 



22526 47357 

22526 47350 

71785 133-23-11-034 

71785 133-98-12-062 

73803 C9308-02 

80009 129-0539-00 

80009 129-0295-00 

83385 OBD 

80009 366-1629-01 

80009 214-2316-00 



83385 


OBD 


80009 


351-0455-00 


83385 


OBD 


78189 


OBD 


80009 


391-0139-00 


83385 


OBD 


83385 


OBD 


80009 


381-0365-00 


80009 


407-1697-00 


83385 


OBD 


83385 


OBD 


80009 


391-0144-00 


74445 


OBD 


80009 


211-0564-00 


80009 


386-3554-00 


83385 


OBD 


74445 


OBD 


000AE 


C36C 


000AH 


OBD 


80009 


214-2419-00 


80009 


386-2823-00 



000AH OBD 



80009 
80009 
80009 



119-0421-03 
352-0161-08 
352-0161-09 



4051 SERVICE VOL. 2 



6-5 



REPLACEABLE MECHANICAL PARTS-4051 



Fig. & 




Index 


Tektronix Serial/ 


No. 


Part No. Eff 


2-34 


131-0707-00 


-35 


119-0421-01 


-36 


119-0421-00 


-37 


352-0450-00 


-38 




-39 


211-0507-00 




198-0725-00 


-40 


131-0707-00 


-41 


131-0861-00 


-42 


175-0832-00 


-43 


175-0863-00 


-44 


352-0165-00 


-45 


352-0167-07 


-46 


352-0169-00 




352-0169-01 


-47 


214-2319-00 


-48 


211-0517-00 


-49 


210-0457-00 


-50 


210-1252-00 


-51 


214-2320-00 


-52 


214-0489-00 


-53 


214-1521-00 


-54 


337-2260-00 


-55 


210-0457-00 


-56 


352-0424-00 


-57 


386-3369-01 


-58 


211-0507-00 


-59 


214-1474-00 




147-0045-01 


-60 


213-0228-01 


-61 


352-0169-04 


-62 


131-0707-00 


-63 






147-0046-01 


-64 


211-0507-00 




213-0228-01 


-65 


352-0161-05 


-66 


131-0707-00 


-67 






210-0202-00 




213-0124-00 


-68 


361-0747-00 


-69 


401-0342-01 



Dscont Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



-70 211-0513-00 



6 . . CONTACT, ELEC:0.48"L, 22-26 AWG WIRE 

1 . . HEAD,SRR CABLE: 

1 . HEAD,SRR: 

1 . HLDR,HEAD ALIGN:ALUMINUM 

1 . LOUDSPEAKER, PM: (SEE LS60 EPL) 
(ATTACHING PARTS) 

4 . SCREW, MACHINE :6-32 X 0.312 INCH,PNH STL 

1 . WIRE SET,ELEC:MAG TAPE DRIVE 

20 . . CONTACT, ELEC:0.48"L, 22-26 AWG WIRE 

2 . . CONTACT, ELEC: QUICK DISCONNECT 

FT . . WIRE, ELECTRICAL: 9 WIRE RIBBON, 0.729 FT 

FT . . WIRE, ELECTRICAL: 2 WIRE RIBBON, 0.688 FT 

1 . . CONN BODY, PL, EL: 7 WIRE BLACK 

1 . . CONN BODY, PL, EL: 9 WIRE VIOLET 

1 . . CONN BODY, PL, EL: 2 WIRE BLACK 

1 . . CONN BODY,PL,EL:2 WIRE BROWN 

1 . BAR, PIVOT: CARTRIDGE EJECT 

(ATTACHING PARTS) 

1 . SCREW, MACHINE :6-32 X 1 INCH, PNH, STL 

1 . NUT, PLAIN, EXT W:6-32 X 0.312 INCH, STL 

1 . WASHER,SPR TNSN:0.146 ID X 0.0008 THK 

1 . PVT,CRTG EJCTR:0.5 DIA,DELRIN 

- . . PIVOT BAR INCLUDES: 
1 . . PIN, SPRING: 

1 . . PIN, RETAINING: 

1 . SHIELD: TRAY, SAFETY 

(ATTACHING PARTS) 

2 . NUT, PLAIN, EXT W:6-32 X 0.312 INCH, STL 

1 . HOLDER, TACH: 

1 . PLATE, TACH: 

(ATTACHING PARTS) 

2 . SCREW, MACHINE:6-32 X 0.312 INCH, PNH STL 

- . . PLATE INCLUDES: 

2 . . PIN,SPRING:0.75 L X 0.125 0D,STL BK OX 

1 . MOTOR,DC:6V,1700 RPM 

(ATTACHING PARTS) 

1 . SETSCREW:6-32 X 0.125 L,STL 

- . . MOTOR INCLUDES: 

1 . . CONN BODY, PL, EL: 2 WIRE YELLOW 

2 . . CONTACT, ELEC:0.48"L, 22-26 AWG WIRE 
1 . . M0T0R,DC: (SEE B1090 EPL) 

1 . MOTOR, DC: TAPE DRIVE, 12V 

(ATTACHING PARTS) 

2 . SCREW, MACHINE :6-32 X 0.312 INCH, PNH STL 
1 . SETSCREW:6-32 X 0.125 L,STL 

- . . MOTOR INCLUDES: 

1 . . CONN BODY,PL,EL:3 WIRE GREEN 

3 . . CONTACT, ELEC :0.48"L, 22-26 AWG WIRE 

1 . . MOTOR, DC: (SEE B1092 EPL) 

2 . . CAP. ,FXD,CER DI:(SEE C1091,C1092 EPL) 
1 . . TERMINAL, LUG :SE #6 

1 . . SCR,TPG,THD FOR:6-20 X 0.250 INCH, PNH STL 

1 . SPACER,PLATE:0.562 ID X 0.02 THK 

1 . HUB, TAPE DRIVE :W/0. 645 DIA HYPALON WHEEL 

1 . CKT BOARD ASSY: STATUS W/MICRO SW(SEE A7 EPL) 

(ATTACHING PARTS) 

2 . SCREW, MACHINE :6-32 X 0.625 INCH, PNH STL 



22526 75691-005 

11983 139-077 

11983 P-DC21P078N5 

80009 352-0450-00 



83385 


OBD 


80009 


198-0725-00 


22526 


75691-005 


00779 


42617-2 


08261 


OBD 


80009 


175-0863-00 


80009 


352-0165-00 


80009 


352-0167-07 


80009 


352-0169-00 


80009 


352-0169-01 


80009 


214-2319-00 


83385 


OBD 


83385 


OBD 



80009 214-2320-00 

80009 337-2260-00 

83385 OBD 

80009 352-0424-00 

80009 386-3369-01 

83385 OBD 



80009 214-1474-00 
80009 147-0045-01 



80009 352-0169-04 

22526 75691-005 

80009 147-0046-01 

83385 OBD 



80009 352-0161-05 
22526 75691-005 



78189 2104-06-00-2520N 

83385 OBD 

80009 361-0747-00 

80009 401-0342-01 



83385 OBD 



6-6 



4051 SERVICE VOL. 2 



REPLACEABLE MECHANICAL PARTS-4051 



Fig. & 

Index Tektronix Serial/Model No. 

No. Part No. Eff Dscont 

2- 

-71 

-72 211-0601-00 

131-0608-00 
-73 

-74 211-0034-00 
-75 210-0405-00 
-76 210-0001-00 

-77 407-1669-00 

162-0530-00 

-78 214-2261-00 

-79 214-2264-00 

-80 211-0516-00 
-81 343-0551-00 

-82 401-0349-00 

-83 354-0554-00 

-84 384-1383-00 

-85 354-0350-00 

-86 351-0451-00 

-87 211-0522-00 

351-0462-00 

211-0522-00 

-88 214-2263-00 
-89 351-0459-00 

-90 211-0545-00 

-91 351-0454-00 

351-0453-00 

-92 361-0781-00 

-93 210-0407-00 
210-0006-00 

-94 386-3368-00 
-95 200-1852-00 

-96 211-0008-00 

620-0246-00 

-97 212-0004-00 
-98 210-0008-00 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



-99 



-100 211-0097-00 
-101 210-1171-00 



- . . CIRCUIT BOARD ASSEMBLY INCLUDES: 

1 . . CKT BOARD ASSY: STATUS W/MICRO SW(SEE A7 EPL) 

(ATTACHING PARTS) 

2 . . SCR,ASSEM WSHR:6-32 X 0.312 INCH,PNH BRS 

9 . . CONTACT,ELEC:0.365 INCH LONG 
2 . . SWITCH, PUSH: (SEE Sl,S2 EPL) 

(ATTACHING PARTS FOR EACH) 
2 . . SCREW,MACHINE:2-56 X 0.50 INCH,PNH 
2 . . NUT, PLAIN, HEX. : 2-56 X 0.188 INCH, BRS 
2 WASHER LOCK:INT T n 092 T D v nQ " r>r " ^nrr 

1 . . BRKT, SENSOR MTG: 

FT . INSUL,SLVG,ELEC:HT SHRINK,0.188 ID, 0.33 FT L 

1 . SPRING, HLCPS: 0.035 DIA,5.5 L MUSIC WIRE 

2 . ARM, DETENT: TAPE POSITIONING 

(ATTACHING PARTS FOR EACH) 
1 . SCREW, MACHINE: 6- 3 2 X. 0.875 INCH,PNH STL 
1 . RTNR,DETENT ARM:0.14 ID X 0.373 OD,AL 

1 . ROLLER,HOLDDOWN:0.50 DIA X 0.75 L, NYLON 

(ATTACHING PARTS) 

2 . RING, RETAINING: EXT LUG GRIPPING, 0.094 D 

1 . SHAFT, HOLDDOWN: 0.093 DIA X 7.66 L,STL 

(ATTACHING PARTS) 

2 . RING, RETAINING: 0.07 3 "FREE ID X 0.015", STL 

1 . GUIDE, TAPE CRTG:TOP LEFT 

(ATTACHING PARTS) 
1 . SCREW, MACHINE :6-32 X 0.625,FLH,STL 

1 . GUIDE, TAPE CRTG:TOP RIGHT 

(ATTACHING PARTS) 

1 . SCREW, MACHINE :6-32 X 0.625,FLH,STL 

2 . WHEEL, DETENT: 0.187 ID X 0.6 OD,SST 

1 . GUIDE, TAPE CRTG:ENTRACE 

(ATTACHING PARTS) 

2 . SCREW, MACHINE :6-32 X 1.250 INCH,TRH STL 

1 . GUIDE, TAPE CRTG:LEFT 

1 . GUIDE, TAPE CRTG: RIGHT 

2 . SPACER,PAD:W/4-40 THD 

(ATTACHING PARTS FOR EACH) 
1 . NUT, PLAIN, HEX. : 6-3 2 X 0.25 INCH, BRS 
1 . WASHER, LOCK :INTL, 0.14 6 IDX 0.288 OD,STL 

1 . PLATE, TAPE DECK: 
1 COVER, PWR,SPLY: 

(ATTACHING PARTS) 

3 SCREW, MACHINE: 4 -40 X 0.25 INCH,PNH STL 

1 POWER SUPPLY: 

(ATTACHING PARTS) 
7 SCREW, MACHINE :8-32 X 0.312 INCH,PNH STL 
3 WASHER, LOCK :INTL, 0.172 ID X 0.331"OD,STL 

- . POWER SUPPLY INCLUDES: 

3 . TRANSISTOR: (SEE Q251, 0451, 0452 EPL) 

(ATTACHING PARTS FOR EACH) 
1 . SCREW, MACHINE :4-40 X 0.312 INCH,PNH STL 
1 . WSHR, SHOULDERED: 0.116 ID X 0.138 INCH OD 



80009 


211-0601-00 


22526 


47357 


83385 


OBD 


73743 


2X12157-402 


78189 


1202-00-00-0541C 


80009 


407-1669-00 


80009 


214-2261-00 


80009 


214-2264-00 


83385 


OBD 


80009 


343-0551-00 


80009 


401-0349-00 


79136 


G5555-9 


80009 


384-1383-00 


79136 


5133-9MD 


80009 


351-0451-00 



80009 351-0462-00 



80009 
80009 



214-2263-00 
351-0459-00 



83385 OBD 



80009 


351-0454-00 


80009 


351-0453-00 


80009 


361-0781-00 


73743 


3038-0228-402 


78189 


1206-00-00-0541C 


80009 


386-3368-00 


80009 


200-1852-00 


83385 


OBD 


80009 


620-0246-00 


83385 


OBD 


78189 


1208-00-00-0541C 



83385 
52905 



OBD 
A7148516P2 



4051 SERVICE VOL. 2 



6-7 



REPLACEABLE MECHANICAL PARTS-4051 



Fig. & 

Index Tektronix Serial/ Model No. 

No. Part No. Eff Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 

Code Mfr Part Number 



2-102 



-103 


211-0097-00 


-104 


210-1171-00 


-105 




-106 


211-0097-00 


-107 


210-1171-00 


-108 




-109 


211-0097-00 


-110 


210-1171-00 


-111 


342-0203-00 


-112 




-113 


211-0097-00 


-114 


131-0589-00 


-115 


344-0154-00 


-116 


334-2151-00 


-117 


432-0048-04 



-118 211-0514-00 

-119 210-0407-00 

-120 386-0254-00 

-121 348-0149-00 

-122 348-0056-00 

-123 210-0202-00 



■124 


211-0590-00 


•135 


210-0457-00 


■126 




■127 


211-0097-00 


■128 




■129 


211-0025-00 


•130 


210-0586-00 


■131 


352-0362-00 


■132 


210-0873-00 


■133 




•134 


212-0515-00 


•135 


220-0410-00 


■136 


210-0812-00 


-137 


166-0227-00 




210-0314-00 


-138 


214-2301-00 


-139 


380-0452-00 




131-1864-00 



-140 131-1041-00 



1 . TRANSISTOR: (SEE Q252 EPL) 

(ATTACHING PARTS) 
1 . SCREW,MACHINE:4-40 X 0.312 INCH,PNH STL 
1 . WSHR, SHOULDERED: 0.116 ID X 0.138 INCH OD 

1 . MICROCIRCUIT: (SEE U352 EPL) 

(ATTACHING PARTS) 
1 . SCREW, MACHINE :4-40 X 0.312 INCH,PNH STL 
1 . WSHR, SHOULDERED: 0.116 ID X 0.138 INCH OD 

1 . TRANSISTOR: (SEE Q552 EPL) 

(ATTACHING PARTS) 
1 . SCREW, MACHINE :4-40 X 0.312 INCH,PNH STL 
1 . WSHR, SHOULDERED: 0.116 ID X 0.138 INCH OD 

6 . INSULATOR, PLATE :XSTR, 0.675 X 0.625 X 0.001 
1 . OCT BOARD ASSY:POWER SUPPLY (SEE Al EPL) 

(ATTACHING PARTS) 
4 . SCREW, MACHINE: 4-40 X 0.312 INCH,PNH STL 

- . . CKT BOARD ASSEMBLY INCLUDES: 
27 . . CONTACT, ELEC: 0.46 INCH LONG 

4 . . CLIP, ELECTRICAL: FOR 0.25 INCH DIA FUSE 

1 . . MARKER, IDENT: 
4 . . BASE, CAP. ,MTG: 

(ATTACHING PARTS FOR EACH) 

2 . . SCREW, MACHINE-.6-32 X 0.750 INCH,PNH STL 
2 . . NUT, PLAIN, HEX. : 6- 3 2 X 0.25 INCH,BRS 

2 . . RET. , CAPACITOR: 

1 . GROMMET, PLASTIC: U-SHAPED, 0.990 INCH LONG 

1 . GROMMET, PLASTIC:0. 375 INCH DIA 

2 . TERMINAL, LUG :SE #6 

(ATTACHING PARTS FOR EACH) 
1 . SCREW, MACHINE: 6-32 X 0.25 INCH,PNH STL 
1 . NUT, PLAIN, EXT W:6-32 X 0.312 INCH, STL 

1 . SEMICOND DEVICE: (SEE CR1005 EPL) 

(ATTACHING PARTS) 

2 . SCREW, MACHINE :4-40 X 0.312 INCH,PNH STL 

1 . FILTER, RAD INTE: (SEE FL1000 EPL) 

(ATTACHING PARTS) 

2 . SCREW, MACHINE :4-40 X 0.375 100 DEG,FLH STL 
2 . NUT, PLAIN, EXT W:4-40 X 0.25 INCH, STL 

1 . FUSEHOLDER: W/MOUNTING HARDWARE 

1 . WASHER, NONMETAL: 0.5 ID X 0.688 INCH OD,NPRN 

1 . XFMR,PWR,SDN/SU: (SEE T1001 EPL) 

(ATTACHING PARTS) 

4 . SCREW, MACHINE: 10-32 X 2.250" HEX.HD STL 

4 . NUT, EXTENDED WA:10-32 X 0.375 INCH, STL 

4 . WASHER, NONMETAL: #10, FIBER 

4 . INS SLV, ELEC: 0.187 ID X 1.50 INCH LONG 

- . . XFMR INCLUDES: 

10 . . TERMINAL, LUG: 0.062 X 0.125 H0LE,BRS 

1 . HEAT SINK, XFMR: 

1 . HSG,PWR SUPPLY: 

2 . LINK,TERM.CONNE:2.22 AWG,3.75 

- . . EACH JUMPER INCLUDES: 

2 . . CONTACT, ELEC: QUICK DISCONNECT 



83385 OBD 

52905 A7148516P2 



83385 OBD 

52905 A7148516P2 



83385 OBD 

52905 A7148516P2 



80009 342-0203-00 



83385 OBD 



22526 47350 

80009 344-0154-00 

80009 432-0048-04 

83385 OBD 

73743 3038-0228-402 

25941 85109 

80009 348-0149-00 

80009 348-0056-00 

78189 2104-06-00-2520N 

83385 OBD 

83385 OBD 



83385 OBD 



83385 OBD 
78189 OBD 



75915 345001 
70485 OBD 



83385 OBD 

83385 OBD 

86445 OBD 

80009 166-0227-00 



80009 214-2301-00 

80009 380-0452-00 

80009 131-1864-00 

00779 61060-2 



6-8 



4051 SERVICE VOL. 2 



REPLACEABLE MECHANICAL PARTS— 4051 



Fig. & 








Index 


Tektronix Serial/Model No. 




No. 


Part No. Eff 


Dscont 


Qty 1 


2-141 


175-0578-01 




FT . 




198-2498-00 




1 . 


-142 


131-0947-00 




1 . 




131-0948-00 




6 . 


-143 


131-1041-00 




4 . 


-144 


204-0669-00 




1 . 


-145 


337-2265-00 




1 S 



2 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



-146 211-0008-00 



-147 337-2251-00 



-148 


211-0008-00 


-149 


210-0004-00 


-150 


252-0571-00 


-151 


129-0588-00 




211-0008-00 


-152 


211-0040-00 


-153 


200-1327-00 


-154 


366-0261-00 


-155 


384-1181-00 


-156 


376-0029-00 




213-0075-00 


-157 




-158 


129-0369-00 


-159 


211-0040-00 




131-0993-00 


-160 


131-0589-00 


-161 


131-1834-00 




136-0647-00 


-162 


136-0278-00 


-163 


214-0464-00 


-164 


384-0616-00 


-165 


211-0008-00 


-166 


210-0004-00 



-167 210-0201-00 



-168 213-0088-00, 
213-0138-00 J 



iby 

170 


211-0514-00 


171 


210-0561-00 


172 


210-0935-00 


173 


386-0978-00 


174 


214-1713-01 


175 


352-0134-00 


176 


214-0506-00 


177 


214-1292-00 


178 


348-0055-00 


179 


337-2267-00 


■180 


361-0137-00 


■181 


211-0040-00 



IN 
1 
1 

5 
2 



1 
60 
2 
1. 
1 
7 
1 

1 
1 



. WIRE, ELECTRICAL: 0.375 INCHES LONG 

WIRE SET, ELEC: POWER SUPPLY 

. CONNECTOR BODY,: MALE, 4 CONTACT 

. CONTACT, ELEC: 0.865 INCH L, FEMALE, BRS 

. CONTACT, ELEC s QUICK DISCONNECT 

. CONN B0DY,RCPT:2 POS NYLON, SNAP-MT 

SHIELD, ELEC: CIRCUIT CARD 

(ATTACHING PARTS) 

SCREW, MACHINE :4-40 X 0.25 INCH,PNH STL 

StlX-Ci-LiL* f jTilJrrVr ; n ■ ^n v WJjJ.ri\Jiij rU«£ii\ ^wrfua 

(ATTACHING PARTS) 
SCREW, MACHINE :4-40 X 0.25 INCH,PNH STL 
WASHER, LOCK: INTL, 0.12 ID X 0.26"OD,STL 

. SHIELD INCLUDES: 

. RUB.SPL SHAPED: CHANNEL, 2.0 FT LONG 

POST, ELEC-MECH: 1.4 L,W/4-40 THD, NYLON 

CKT BOARD ASSY:HARD COPY DISPLAY (SEE A4 EPL) 

(ATTACHING PARTS) 
SCREW, MACHINE :4-40 X 0.25 INCH,PNH STL 
SCREW, MACHINE :4-40 X 0.25",BDGH PLSTC 

. CKT BOARD ASSEMBLY INCLUDES: 

. SHIELD, RESISTOR: 

. KNOB :0. 312 OD X 0.406 INCH LONG 

. EXTENSION SHAFT: 1.840 INCH LONG 

. CPLG, SHAFT, RGD:0. 128 ID X 0.312 OD X 0.5"L 

. . . SETSCREW:4-40 X 0.094 INCH, HEX SOC STL 

. CKT BOARD ASSY: DISPLAY 

. . INSULATOR, STDF: 1.370 INCH,W/4-40 THREAD 

(ATTACHING PARTS) 
. . SCREW, MACHINE :4-40 X 0.25",BDGH PLSTC 

. . LINK, TERM. CONNE:2 WIRE BLACK 

. . CONTACT, ELEC: 0.4 6 INCH LONG 

. . TERMINAL, STUD: 0.89 L,W/NYLON INSULATOR 

. . SOCKET ASSY: CRT 

. . . SOCKET, PLUG-IN :WITH PINS 

.... CONTACT,ELEC:CRT 

. . POST,ELEC-MECH:HEX,0.25 X 1.370 INCH LONG 

(ATTACHING PARTS) 
. . SCREW, MACHINE :4-40 X 0.25 INCH,PNH STL 
. . WASHER, LOCK: INTL, 0.12 ID X 0.26"OD,STL 

. . TERMINAL, LUG :SE #4 

(ATTACHING PARTS) 
. . SCR,TPG,THD CTG:4-24 X 0.25 
. . SCR,TPG,THD CTG:4-24 X 0.25 

. . TRANSISTOR: (SEE 0432 EPL) 

(ATTACHING PARTS) 
. . SCREW, MACHINE :6-32 X 0.750 INCH,PNH STL 
. . NUT, PLAIN, HEX. :0.188 INCH L, 0.188 HEX BRS 
. . WASHER, NONMETAL: FIBER, 0.14 IDX 0.375"OD 

. . INSULATOR, PLATE: 0.002 INCH MICA, FOR TO-3 

. . HEAT SINK,XSTR: 

. . HOLDER, COIL: TOROIDAL, 0.472 X 0.417 INCH 

. , CONTACT, ELEC: 0.045 SQ X 0.375 INCH L 

. . HEAT SINK, ELEC: TRANSISTOR 

. . GROMMET,PLASTIC:0.25 INCH DIA 

. . SHIELD, ELEC :HV TRANSFORMER 

. . POST, ELEC-MECH: 1.345 INCH,W/4-40 THREAD 

(ATTACHING PARTS) 

. . SCREW, MACHINE :4-40 X 0.25",BDGH PLSTC 



INCH,PNH STL 

INCH,PNH STL 



80009 
80009 
27264 
27264 
00779 
09922 
80009 



175-0578-01 

198-2498-00 

03-09-1041 

02-09-1103 

61060-2 

B6053766 

337-2265-00 



83385 OBD 

80009 337—2251—00 



83385 


OBD 


78189 


1204-00-00-0541C 


77969 


1353 


80009 


129-0588-00 


83385 


OBD 


26365 


OBD 


80009 


200-1327-00 


80009 


366-0261-00 


80009 


384-1181-00 


80009 


376-0029-00 


70276 


OBD 



80009 129-0369-00 



26365 


OBD 


00779 


530153-2 


22526 


47350 


98291 


023-3000-00-0479 


80009 


136-0647-00 


80009 


136-0278-00 


80009 


214-0464-00 


80009 


384-0616-00 


83385 


OBD 


78189 


1204-00-00-0541C 



78189 2104-04-00-2520N 

83385 OBD 
83385 OBD 



83385 


OBD 


80009 


210-0561-00 


74921 


OBD 


80009 


386-0978-00 


80009 


214-1713-01 


80009 


352-0134-00 


80009 


214-0506-00 


05820 


205-AB 


80009 


348-0055-00 


80009 


337-2267-00 


80009 


361-0137-00 


26365 


OBD 



On -05 and up only. 



4051 SERVICE VOL. 2 



6-9 



REPLACEABLE MECHANICAL PARTS— 4051 



Fig. & 

Index Tektronix 

No. Part No. 



Serial /Model No. 
Eft Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



2- 

-182 
-183 
-184 
-185 
-186 



-208 
-209 



-210 
-211 



-212 
-213 



-214 
-215 



198-3024-00 
198-3079-00 
131-1790-00 
204-0671-00 
175-0862-00 
131-1815-00 
204-0678-00 
175-0826-00 



-187 




-188 


211-0012-00 


-189 


210-1171-00 


-190 




-191 


211-0012-00 


-192 


210-1171-00 


-193 




-194 


211-0507-00 


-195 


342-0311-00 


-196 


342-0203-00 




342-0328-00 


-197 


348-0115-01 


-198 


255-0334-00 


-199 


129-0212-00 


-200 


211-0008-00 


-201 


343-0089-00 


-202 


366-0261-00 


-203 




-204 


213-0020-00 




179-2354-00 


-205 


131-0890-00 


-206 


210-0204-00 


-207 


210-0004-00 



131-0458-00 
131-0621-00 
131-0622-00 
131-0707-00 
131-0708-00 
131-0792-00 
131-1006-00 
352-0161-03 
352-0161-06 
352-0197-00 
352-0200-00 
352-0200-05 
352-0200-06 
352-0203-03 
352-0204-03 
352-0204-04 



1 

1 

12 

4 

FT 

15 

5 

FT 



1 
31 

5 
22 

3 
4 

1 
1 
1 
1 
1 
1 
1 
1 
1 
1 



. WIRE SET, ELEC: DISPLAY 

WIRE SET, ELEC: HARD COPY DISPLAY 

. CONTACT, ELEC: 18-24 AWG, FEMALE, BRASS 

. BODY, CONN, PLUG,: 3 FEMALE POSN. NYLON 

. WIRE, ELECTRICAL: 3 WIRE RIBBON 

. CONTACT, ELEC:22-30 AWG, FEMALE, BRASS 

. CONN BODY, PL, EL: FOR 3 FEMALE CONTACTS 

. WIRE, ELECTRICAL: 3 WIRE RIBBON 

TRANSISTOR: (SEE Q1091,1092 EPL) 

(ATTACHING PARTS FOR EACH) 
SCREW, MACHINE: 4 -40 X 0.375 INCH,PNH STL 
WSHR, SHOULDERED: 0.116 ID X 0.138 INCH OD 

TRANSISTOR: (SEE Q1044, 1048, 1059, 1067 ,1038 EPL) 

(ATTACHING PARTS FOR EACH) 
SCREW, MACHINE:4-40 X 0.375 INCH,PNH STL 
WSHR, SHOULDERED: 0.116 ID X 0.138 INCH OD 

TRANSISTOR: (SEE 01069, 1074, 1084 ,1096 EPL) 

(ATTACHING PARTS FOR EACH) 
SCREW, MACHINE :6-32 X 0.312 INCH,PNH STL 

INSULATOR,PLATE:MICA,T0-3 PLSTC TRANSISTOR 
INSULATOR, PLATE :XSTR, 0.67 5 X 0.625 X 0.001 
INSULATOR, PLATE : XSTR, ALUMINUM 
GROMMET , PLASTIC : U-SHAPED 
PLASTIC CHANNEL: 

SPACER, POST: 0.312 OD X 0.435 INCH L,NYL 
(ATTACHING PARTS FOR EACH) 
SCREW, MACHINE: 4 -40 X 0.25 INCH,PNH STL 

CLAMP , LOOP : LARGE 

KNOB: 0.312 OD X 0.406 INCH LONG 

RES. ,VAR,NONWW: (SEE R339 EPL) 

(ATTACHING PARTS) 
SETSCREW:6-32 X 0.125 INCH, HEX. SOC STL 

WIRING HARNESS,: DISPLAY 

(ATTACHING PARTS) 
LOCK, CONNECTOR: 4 -40 X 0.312 L 
TERMINAL, LUG: 0.146 INCH DIA DE,45 DEG BEND 
WASHER,LOCK:INTL,0.12 ID X 0.26"OD,STL 

. CABLE ASSY INCLUDES: 

. CONNECTOR, RCPT, : 15 PIN, FEMALE 

. CONTACT, ELEC:0.577"L, 22-26 AWG WIRE 

. CONTACT, ELEC:0.577"L, 28-32 AWG WIRE 

. CONTACT, ELEC :0. 48 "L, 22-26 AWG WIRE 

. CONTACT, ELEC:0.48"L, 28-32 AWG WIRE 

. CONTACT, ELEC:0.577"L, 18-20 AWG WIRE 

. CONN, RCPT, ELEC: 9 CONTACT , FEMALE 

. CONN BODY, PL, EL: 3 WIRE ORANGE 

. CONN BODY, PL, EL: 3 WIRE BLUE 

. CONN BODY, PL, EL :1 WIRE BLACK 

. CONN BODY, PL, EL: 4 WIRE BLACK 

. CONN BODY, PL, EL: 4 WIRE GREEN 

. CONN BODY, PL, EL: 4 WIRE BLUE 

. CONN BODY, PL, EL: 7 WIRE ORANGE 

. CONN BODY, PL, EL: 8 WIRE ORANGE 

. CONN BODY, PL, EL: 8 WIRE YELLOW 



80009 
80009 
27264 
27264 
80009 
27264 
27264 
80009 



01295 
80009 
80009 
80009 
11897 
80009 



198-3024-00 

198-3079-00 

08-56-0105 

09-50-4031 

175-0862-00 

08-56-0110 

10-17-2032 

175-0826-00 



83385 OBD 

52905 A7148516P2 



83385 OBD 

52905 A7148516P2 



83385 OBD 



10-21-023-105 

342-0203-00 

342-0328-00 

348-0115-01 

122-37-2500 

129-0212-00 



83385 OBD 



80009 


343-0089-00 


80009 


366-0261-00 


70276 


OBD 


80009 


179-2354-00 



71468 D 20418-2 

78189 2157-06-01-2520N 

78189 1204-00-00-0541C 



71468 


DA15S 


22526 


46233 


22526 


46241 


22526 


75691-005 


22526 


47437 


22526 


46221 


71785 


230-09-11-101 


80009 


352-0161-03 


80009 


352-0161-06 


80009 


352-0197-00 


80009 


352-0200-00 


80009 


352-0200-05 


80009 


352-0200-06 


80009 


352-0203-03 


80009 


352-0204-03 


80009 


352-0204-04 



6-10 



4051 SERVICE VOL. 2 



REPLACEABLE MECHANICAL PARTS— 4051 



Fig. & 

Index Tektronix 

No. Part No, 



Serial /Model No. 
Eft Dscont 



Qty 12 3 4 5 



Name & Descriptior 



Mfr 



Code 


M f r Part Numbe 


80009 


352-0205-02 


S0009 


357-0205-04 


22526 


65043-070 


59730 


TY23M 


59730 


TY-232M 


80009 


441-1291-00 


83385 


OBD 


83385 


OBD 



2-216 



-217 
-218 



-219 



-220 



352-0205-02 
352-0205-04 
352-0428-00 
343-0549-00 
346-0128-00 
441-1291-00 

211-0534-00 
211-0507-00 



1 

1 

1 

20 



. CONN B0DY,PL,EL:9 WIRE RED 

. CONN BODY, PL, EL: 9 WIRE YELLOW 

. CONN BODY, PLUG: 2/12 FEM CONT 

. STRAP, TIEDOWN: 0.091 W X 3.62 INCH LONG 

. STRAP, TIE DOWN:0.1W X 8.0" LONG, NYLON 

CHAS,ELEC EQPT:LEFT 

(ATTACHING PARTS) 
SCR,ASSEM,WSHR:6-32 X 0.312 INCH,PNH STL 
SCREW, MACHINE :6-32 X 0.312 INCH,PNH STL 



4051 SERVICE VOL. 2 



6-11 



REPLACEABLE MECHANICAL PARTS— 4051 



Fig. & 
Index 
No. 



Tektronix 
Part No. 



Serial/Model No. 
Eff Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



3-1 



-2 



407-0997-00 
211-0008-00 



-3 


253-0056-00 


-4 


337-1482-00 


-5 


426-0834-01 


-6 


212-0553-00 


-7 


361-0541-00 


-8 


131-1385-00 




210-0632-00 


-9 


378-0064-00 


-10 


211-0017-00 


-11 




-12 


131-0608-00 


-13 


337-2235-00 


-14 


361-0751-00 


-15 


343-0298-00 


-16 


386-3367-00 


-17 


212-0004-00 


-18 


210-0008-00 


-19 


211-0097-00 


-20 


129-0569-00 


-21 


343-0006-00 


-22 


211-0014-00 


-23 


210-0994-00 


-24 


210-0863-00 


-25 


334-1379-00 


-26 


386-3420-00 


-27 


211-0097-00 


-28 


348-0013-00 


-29 


358-0561-00 


-30 


337-1519-00 


-31 


211-0590-00 


-32 


337-2263-00 


-33 


210-0458-00 


-34 


407-1749-00 


-35 


211-0581-00 


-36 


210-0006-00 


-37 





-38 
-39 

-40 



348-0115-01 
343-0089-00 
343-0213-00 



2 BRACKET,ANGLE:IMP SHIELD RET, 9 INCH LONG 
(ATTACHING PARTS FOR EACH) 
2 SCREW, MACHINE: 4 -40 X 0.25 INCH,PNH STL 

- . EACH BRACKET ANGLE INCLUDES: 

FT . CUSHION :POLYURATHANE FOAM, PRESSURE SENS 
1 SHLD, IMPLOSION: 
1 FR, IMPLOSION SH: 

(ATTACHING PARTS) 
4 SCREW, MACHINE: 10-32 X 1.50 INCH,PNH STL 
4 SPACER, SLEEVE: 0.50 OD X 0.976 INCH LONG 

- . FRAME INCLUDES: 

4 . CONTACT, ELEC GROUNDING 

8 . EYELET, METALLIC: 0.089 OD X 0.125"LONG,BRS 

1 FILTER, LIGHT: 6. 276 X 1.0,0.06 R ACRYLIC 

(ATTACHING PARTS) 

2 SCREW,MACHINE:4-40 X 0.375 INCH,PNH STL 

1 CRT BOARD ASSY: INDICATOR (SEE A8 EPL) 
8 . CONTACT, ELEC: 0.365 INCH LONG 

2 . SHIELD, LIGHT: CRT CD MT,1.0X 0.355 INCH 

2 . SPACER, SLEEVE: 0.156 ID X 0.312 OD X 0.493 L 
1 CLAMP, LOOP: PLASTIC, W/ADHESIVE BACK 

1 SUPPORT, CRT: FRONT 

(ATTACHING PARTS) 

2 SCREW, MACHINE: 8-3 2 X 0.312 INCH,PNH STL 
2 WASHER, LOCK: INTL, 0.172 ID X 0.331"OD,STL 
2 SCREW, MACHINE :4-40 X 0.312 INCH,PNH STL 

- . SUPPORT INCLUDES: 

2 . POST, ELEC-MECH: 0.543 L,W/4-40 THD,AL 
1 CLAMP, LOOP: 0.50 INCH DIAMETER, PLSTC 

(ATTACHING PARTS) 
1 SCREW, MACHINE :4-40 X 0.50 INCH,PNH STL 
1 WASHER,FLAT:0.125 ID X 0.25" OD,STL 
1 WSHR,LOOP CLAMP:FOR 0.50" WIDE CLAMP, STL 

1 LABEL: CRT, ADHESIVE BACK 
1 STIFFENER , CHAS : 

(ATTACHING PARTS) 
1 SCREW, MACHINE :4-40 X 0.312 INCH,PNH STL 

4 FOOT,CABINET:BLACK RUBBER 

1 BUSHING, SLEEVE: 1.15 ID X 2. OL, SI, 1.2 OD 

1 SHLD,ELCTRN TUB: FRONT 

(ATTACHING PARTS) 
4 SCREW, MACHINE :6-32 X 0.25 INCH,PNH STL 

1 SHLD, ELECTRON T:REAR 

(ATTACHING PARTS) 

2 NUT,PLAIN,EXT W:8-32 X 0.344 INCH, STL 

1 BRACKET, YOKE: 

(ATTACHING PARTS) 

2 SCREW, MACHINE :6-32 X 0.375 INCH,TRH STL 
2 WASHER, LOCK: INTL, 0.146 IDX 0.288 OD,STL 

1 COIL TUBE PEFL: (SEE L1012 A AND B EPL) 

1 GROMMET, PLASTIC: U-SHAPED 

2 CLAMP, LOOP: LARGE 

2 CLAMP, LOOP: PRESS MT, PLASTIC 



80009 407-0997-00 
83385 OBD 



04963 4116 

80009 337-1482-00 

80009 426-0834-01 



83385 


OBD 


80009 


361-0541-00 


80009 


131-1385-00 


01881 


3168 


52675 


OBD 



83385 OBD 



22526 47357 

80009 337-2235-00 

80009 361-0751-00 

95937 HPC25 

80009 386-3367-00 



83385 


OBD 


78189 


1208-00-00-0541C 


83385 


OBD 


80009 


129-0569-00 


95987 


1-2-6B 


83385 


OBD 


83385 


OBD 


95987 


C191 


80009 


334-1379-00 


80009 


386-3420-00 



83385 OBD 



70485 


1561 


80009 


358-0561-00 


80009 


337-1519-00 


83385 


OBD 


80009 


337-2263-00 


83385 


OBD 


80009 


407-1749-00 


83385 


OBD 


78189 


1206-00-00-0541C 


80009 


348-0115-01 


80009 


343-0089-00 


80009 


343-0213-00 



6-12 



4051 SERVICE VOL. 2 



REPLACEABLE MECHANICAL PARTS— 4051 



Fig. & 
Index 
No. 



Tektronix 
Part No. 



Serial/Model No. 
Eft Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mir Part Number 



3-41 386-3349-00 



-42 
-43 



-67 
-68 
-69 
-70 

-71 
-72 

-73 

-74 
-75 



-77 
-78 

-79 
-80 
-81 



212-0004-00 
210-0008-00 



-44 




-45 


211-0551-00 


-46 


380-0332-00 


-47 


211-0507-00 


-48 


385-0080-00 


-49 


210-0803-00 


-50 


378-0047-00 


-51 


378-0076-00 


-52 


407-1696-00 


-53 


212-0004-00 




210-0008-00 


-54 


366-1522-00 


-55 


211-0507-00 


-56 




-57 


211-0514-00 


-58 


131-1780-00 


-59 


211-0185-00 


-60 


210-0405-00 


-61 


136-0621-00 


-62 


361-0562-00 


-63 


175-1726-00 


-64 




-65 


211-0507-00 


-66 


211-0534-00 



211-0558-00 
129-0435-00 
131-0608-00 
131-1465-00 

211-0185-00 
210-0405-00 

131-1780-00 

211-0185-00 
210-0405-00 



-76 131-1789-00 



211-0185-00 
210-0405-00 

136-0514-00 
136-0578-00 
136-0621-00 



1 SUPPORT, CRT: CENTER 

(ATTACHING PARTS) 

2 SCREW, MACHINE :8-32 X 0.312 INCH,PNH STL 
2 WASHER, LOCK :INTL, 0.172 ID X 0.331"OD,STL 

1 FAN, VENTILATING: (SEE BlOOl EPL) 
(ATTACHING PARTS) 
4 SCREW, MACHINE :6-32 X 0.562 INCH,PNH STL 

1 HOUSING, SWITCH: 

(ATTACHING PARTS ) 
4 SCREW, MACHINE :6-32 X 0.312 INCH,PNH STL 
4 POST,ELEC-MECH: 
4 WASHER, FLAT: 0.15 ID X 0.375 INCH OD,STL 

1 FILTER ELEM,AIR:5.5 X 6.125 INCH 
1 FILTER,MESH:4.5 SQ,AL 

1 BRACKET, ANGLE: REAR PANEL MOUNTING 

(ATTACHING PARTS) 

2 SCREW, MACHINE:8-32 X 0.312 INCH,PNH STL 
2 WASHER, LOCK :INTL, 0.172 ID X 0.331"OD,STL 

1 KNOB: LINE VOLTAGE INDICATOR 

(ATTACHING PARTS) 
1 SCREW, MACHINE :6-32 X 0.312 INCH,PNH STL 

1 CKT BOARD ASSY: MEMORY (SEE A3 EPL) 

6 . SCREW, MACHINE: 6- 3 2 X 0.750 INCH,PNH STL 

1 . CONN, RCPT,ELEC:RT- ANGLE HDR,2/25 MALE 

(ATTACHING PARTS) 

2 . SCREW,MACHINE:2-56 X 0.438" ,PNH, STL 
2 . NUT, PLAIN, HEX.: 2-56 X 0.188 INCH,BRS 

48 . SOCKET, PLUG-IN: 22 CONTACT 

6 . SPACER, SLEEVE: 0.156 ID X 0.25 OD X 0.375 

1 . CA ASSY,SP,ELEC:50-28 AWG,3.0L 

1 CKT BOARD ASSY :CPU (SEE A2 EPL) 

(ATTACHING PARTS) 

2 SCREW, MACHINE:6-32 X 0.312 INCH,PNH STL 

2 SCR, ASSEM,WSHR: 6-32 X 0.312 INCH,PNH STL 

- . CKT BOARD ASSY INCLUDES: 

3 . SCREW, MACHINE :6-32 X 0.250 BDGH,NYL,SLOT 
3 . SPACER, POST: 0.733 L X 6-32 THD THRU BRS 

10 , CONTACT, ELEC: 0.365 INCH LONG 
2 . CONNECTOR, RCPT, : 34 RT ANGEL CONT 

(ATTACHING PARTS FOR EACH) 
2 . SCREW, MACHINE :2-56 X 0.438" ,PNH, STL 
2 . NUT, PLAIN, HEX. : 2-56 X 0.188 INCH, BRS 

1 . CONN, RCPT, ELEC :RT- ANGLE HDR,2/25 MALE 

(ATTACHING PARTS) 

2 . SCREW, MACHINE :2-56 X 0.438" ,PNH, STL 
2 . NUT, PLAIN, HEX. : 2-56 X 0.188 INCH, BRS 

1 . CONN, RCPT, ELEC :RT- ANGLE, 2/10 

(ATTACHING PARTS) 

2 . SCREW,MACHINE:2-56 X 0.438" ,PNH, STL 
2 . NUT, PLAIN, HEX.: 2-56 X 0.188 INCH, BRS 

2 . SOCKET, PLUG IN:MICROCIRCUIT,8 CONTACT 
16 . SOCKET, PLUG-IN:24 DIP, LOW PROFILE 
16 . SOCKET, PLUG-IN:22 CONTACT 



80009 386-3349-00 



83385 OBD 

78189 1208-00-00-0541C 



83385 OBD 

80009 380-0332-00 

83385 OBD 

80009 385-0080-00 

12327 OBD 

80009 378-0047-00 

80009 378-0076-00 

80009 407-1696-00 

83385 OBD 

78189 1208-00-00-0541C 

80009 366-1522-00 

83385 OBD 

83385 OBD 



07111 OBD 

73743 2X12157-402 

73803 C932202 

80009 361-0562-00 

80009 175-1726-00 



83385 OBD 
83385 OBD 



26365 921-1150-0014 

80009 129-0435-00 

22526 47357 

20999 3431-1002 

07111 OBD 

73743 2X12157-402 



07111 OBD 

73743 2X12157-402 



07111 OBD 

73743 2X12157-402 

73803 C9308-02 

01295 C932402 

73803 C932202 



4051 SERVICE VOL. 2 



6-13 



REPLACEABLE MECHANICAL PARTS-4051 



Fig. & 




Index 


Tektronix 


No. 


Part No. 


3-82 


136-0623-00 


-83 


253-0135-00 


-84 


386-3370-01 


-85 


386-3371-00 


-86 


386-3372-00 


-87 


129-0563-00 


-88 


348-0178-00 


-89 


213-0054-00 


-90 


210-0803-00 


-91 


348-0177-00 


-92 


131-1846-00 


-93 


213-0088-00 




198-2301-00 


-94 


213-0088-00 


-95 


200-1903-00 


-96 


260-1775-00 


-97 


131-0945-00 


-98 


131-0946-00 


-99 


204-0670-00 


-100 


131-1041-00 


-101 


426-1253-00 


-102 


211-0534-00 


-103 


211-0512-00 



Serial /Model No. 
Eft Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



-104 390-0484-01 



-105 211-0559-00 
-106 210-0006-00 



-107 390-0483-01 





211-0559-00 




210-0006-00 


•108 


390-0482-00 


■109 


179-2355-00 


■110 


131-0621-00 




131-0707-00 


■111 


175-0830-00 


■112 


175-0831-00 


■113 


352-0199-02 


•114 


352-0200-02 


•115 


352-0164-00 


•116 


352-0165-00 


•117 


352-0166-00 


■118 


352-0206-01 


■119 


352-0429-00 


■120 


343-0549-00 




175-1725-00 


•121 


131-0833-01 


122 


175-1084-00 



6 

IN 
1 
1 

1 
8 
4 

2 
2 

4 
1 



3 
3 

1 

1 

17 

53 

FT 

FT 

1 

1 

1 
1 
1 
1 
1 
9 
1 
2 
FT 



. SOCKET, PLUG-IN: 40 DIP, LOW PROFILE 

. PLASTIC STRIP: PRESS, SENS, ADH CTD BS 

. PLATE, CONN MTG:REAR,W/HARDWARE 

. SUPPORT, CKT CD:C.P.U. RIGHT 

. SUPPORT, CKT CD:C.P.U. LEFT 

. POST, ELEC-MECH:0. 701 L,W/6-32 THD THRU,AL 

BUMPER, PLASTIC: 2.0 W X 0.40 INCH H 

(ATTACHING PARTS FOR EACH) 
SCR,TPG,THD FOR:6-32 X 0.312 INCH,PNH STL 
WASHER, FLAT: 0.15 ID X 0.375 INCH OD,STL 

PAD, CABINET FT:1.25 W X 0.50 INCH H 
CONTACT ,ELEC : GROUNDING 

(ATTACHING PARTS) 
SCR,TPG,THD CTG:4-24 X 0.25 INCH,PNH STL 

WIRE SET,ELEC: 

(ATTACHING PARTS) 
SCR,TPG,THD CTG:4-24 X 0.25 INCH.PNH STL 

. WIRE KIT INCLUDES: 

. COVER, ELEC SW: POWER 

. SWITCH, ROCKER:DPST,6A,115VAC 

. CONTACT, ELEC: 0.865 INCH LONG, MALE, BRS 

. CONNECTOR BODY, : FEMALE, 4 CONTACT 

. CONN BODY, PLUG: 2 POSN MALE OR FEM,DTT LK,NYL 

. CONTACT, ELEC: QUICK DISCONNECT 

FRAME SECT, CAB. : FRONT 

(ATTACHING PARTS) 
SCR,ASSEM,WSHR:6-32 X 0.312 INCH,PNH STL 
SCREW,MACHINE:6-32 X 0.50" 100 DEG,FLH STL 

CABINET SIDE: RIGHT 

(ATTACHING PARTS) 
SCREW, MACHINE: 6-3 2 X 0.375"100 DEG,FLH STL 
WASHER, LOCK :INTL, 0.146 IDX 0.288 OD,STL 

CABINET SIDE:LEFT 

(ATTACHING PARTS) 
SCREW, MACHINE: 6- 3 2 X 0.375"100 DEG,FLH STL 
WASHER, LOCK :INTL, 0.146 IDX 0.288 OD,STL 

CABINET BOTTOM CALCULATOR 

WIRING HARNESS, : POWER 

. CONTACT, ELEC:0.577"L, 22-26 AWG WIRE 

. CONTACT, ELEC:0.48"L, 22-26 AWG WIRE 

. WIRE, ELECTRICAL: 7 WIRE RIBBON 

. WIRE, ELECTRICAL: 8 WIRE RIBBON 

. CONN BODY, PL, EL: 3 WIRE RED 

. CONN BODY, PL EL: 4 WIRE RED 

. CONN BODY, PL, EL: 6 WIRE BLACK 

. CONN BODY, PL, EL: 7 WIRE BLACK 

. CONN BODY, PL, EL: 8 WIRE BLACK 

. CONN BODY, PL, EL: 10 WIRE BROWN 

. CONN BODY,PLUG:2/19 FEM CONT 

. STRAP, TIEDOWN: 0.091 W X 3.62 INCH LONG 

CA ASSY, SP, ELEC: 34-28 AWG, 14.0 L 

. CONNECTOR , PLUG , : . 7 5 FT LONG 

. WIRE, ELECTRICAL: FLAT TYPE ,3 INCHES LONG 



73803 
12624 
80009 
80009 
80009 
80009 
80009 



C934002 

V592-1/2 

386-3370-01 

386-3371-00 

386-3372-00 

129-0563-00 

348-0178-00 



83385 OBD 

12327 OBD 

80009 348-0177-00 

80009 131-1846-00 

83385 OBD 

80009 198-2301-00 

83385 OBD 



80009 


200-1903-00 


10389 


27-900-024 


27264 


02-09-2103 


27264 


03-09-2041 


09922 


B6053863 


00779 


61060-2 


80009 


426-1253-00 


83385 


OBD 


83385 


OBD 



80009 390-0484-01 



83385 OBD 

78189 1206-00-00-0541C 



80009 390-0483-01 



83385 


OBD 


78189 


1206-00-00-0541C 


80009 


390-0482-00 


80009 


179-2355-00 


22526 


46233 


22526 


75691-005 


08261 


OBD 


08261 


OBD 


80009 


352-0199-02 


80009 


352-0200-02 


80009 


352-0164-00 


80009 


352-0165-00 


80009 


352-0166-00 


80009 


352-0206-01 


22526 


65043-071 


59730 


TY23M 


80009 


175-1725-00 


00779 


86987-1 


75037 


3365 



6-14 



4051 SERVICE VOL. 2 



Fig. & 

Index Tektronix 

No. Part No. 



Serial/Model No. 
Eff Dscont 



REPLACEABLE MECHANICAL PARTS-4051 



FIG. 4 ACCESSORIES 



Qty 12 3 4 5 



Name & Description 



Mfr 
Cods 



Mfr Part Number 



STANDARD ACCESSORIES 



020-0160-00 
020-0161-00 
016-0367-00 
070-1940-00 
070-2056-00 
070-2058-00 
070-2059-00 
119-0680-01 
161-0066-00 
334-2630-02 



1 TAPE CARTRIDGE :PLOT 50 SYSTEM SOFTWARE 80009 020-016C-C0 

1 TAPE CARTRIDGE: PLOT 50 SYSTEM SOFTWARE 80009 020-0161-00 

1 BDR, LOOSE-LEAF: 2.0 CAP RING, VINYL COVER OOOAC 016-0367-00 

1 MANUAL, TECH :OPERATORS, 4051 GRAPHIC CALCULATOR 80009 070-1940-00 

1 MANUAL,TECH:INSTR,4051 GRAPHIC SYSTEM REFEHENCE 80009 070-2056-00 

1 MANUAL, TECH: INTRO TO PROGRAMMING IN BASIC 80009 070-2058-00 

1 MANUAL, TECH: INTRO TO GRPH PROGRAMMING IN BASIC 80009 07Q-2059-00 

1 CARTRIDGE, TAPE :MAGNETIC TAPE PKG OF 5 0000P 33-1990-1322-4 

1 CABLE ASSY,PWR,:3 WIRE, 98 INCH LONG 8CC09 161-0066-00 

1 OVERLAY, KYBD:BLANK,PACKAGE OF 10 80009 334-2630-02 



OPTION ACCESSORIES 



070-2065—00 
070-2286-00 
012-0630-00 
012-0630-01 
016-0346-01 
016-0364-00 
016-0376-00 
334-2630-02 



1 MANUAL, TECH: SERVICE, VOL 1 

1 MANUAL, TECH :SERVICE, VOL 2 

1 CABLE, INTCON: 10 FEET LONG 

1 CABLE, INTCON: 2 METERS 4051 TO OPT 

1 VISOR, CRT: 

1 PEDESTAL KIT: 

1 COVER, PROT: 

1 OVERLAY, KYBD: BLANK, PACKAGE OF 10 



80009 


070-2065-00 


80009 


070-2286-00 


29587 


AC3011101 


29587 


AC3011100 


80009 


016-0346-01 


80009 


016-0364-00 


52833 


016-0376-00 


80009 


334-2630-02 



4051 SERVICE VOL. 2 



6-15 



FIG. 1 KEYBOARD & CRT 




4051 SERVICE VOL. 2 



FIG. 2 TAPE DRIVE, POWER & DISPLAY ASSEMBLIES 

® ~L 




4051 SERVICE VOL. 2 



FIG. 3 CIRCUIT BOARDS & CHASSIS 




® ® ® @ 



4051 SERVICE VOL. 2 



Section 7 



FIRMWARE BACKPACK SCHEMATICS 

Symbols and Reference Designators 

Electrical components shown on the diagrams are in the following units unless noted otherwise: 

Capacitors = Values one or greater are in picofarads (pF). 
Values less than one are in microfarads <//F). 
Resistors = Ohms (£1). 

Graphic symbols and class designation letters are based on ANSI Standard Y32.2-1975. 

Logic symbology is based on ANSI Y32. 14-1973 in terms of positive logic. Logic symbols depict the logic 
function performed and may differ from the manufacturer's data, 

Abbreviations are based on ANSI Y1. 1-1 972. 

Other ANSI standards that are used in the preparation of diagrams by Tektronix, Inc. are: 

Y14.15, 1966 Drafting Practices. 
Y14.2, 1973 Line Conventions and Lettering. 

Y10.5, 1968 Letter Symbols for Quantities Used in Electrical Science and 

Electrical Engineering. 

The following prefix letters are used as reference designators to identify components or assemblies on the diagrams. 



A Assembly, separable or repairable 

(circuit board, etc) 

AT Attenuator, fixed or variable 

B Motor 

BT Battery 

C Capacitor, fixed or variable 

CB Circuit breaker 

CR Diode, signal or rectifier 

DL Delay line 

r>c Indicating device 'lam") 

E Spark Gap, Ferrite bead 

F Fuse 

FL Filter 



H Heat dissipating device (heat sink, 

heat radiator, etc) 

HR Heater 

HY Hybrid circuit 

J Connector, stationary portion 

K Relay 

L Inductor, fixed or variable 

M Meter 

P Connector, movable portion 

Q Transistor or silicon-controlled 

rectifier 

R Resistor, fixed or variable 

RT Thermistor 



The following special symbols may appear on the diagrams: 

Strap or Link 

Cam Switch 
Closure Chart 
(Dot indicates 
switch closure) 



SEL Value Selected 
at Factory 



Test Voltage 



Internal 

Screwdriver 

Adjustment 



Board Name 



Board No. 




S Switch or contactor 

T Transformer 

TC Thermocouple 

TP Test point 

U Assembly, inseparable or non-repairable 
(integrated circuit, etc.) 

V Electron tube 

VR Voltage regulator (zener diode, etc.) 

W Wirestrap or cable 

Y Crystal 

Z Phase shifter 



Plug to E.C. Board 

Identifies Panel 

■ Controls, Connectors and 

I E> A L. [ -*•"**"" Indicators 

Modified Component— See 
Parts List (Depicted in grey, 
or with grey outline) 

Plug Index 



Reference to Board 
and Sheet No. 



&70-XXXX-XX 

4051 SERVICE VOL. 2 



VERTICAL- BOARD 
VERTICAL AMPLIFIER" 



Coaxial Connector 

Shielding 
Heat Sink 

Decoupled or Filtered 
Voltage 

Etched Circuit Board 
Outlined in Black 

Schematic Name 
Sheet No. 



^-3 



7-1 



Board Sequence No. 



FIRMWARE BACKPACK SCHEMATICS 



1. TRUE HIGH and TRUE LOW Signals 

Signal names on the schematics are followed by -1 or -0. A TRUE HIGH signal is indicated by 
-1, and a TRUE LOW signal is indicated by -0. 

SIGNAL-1 = TRUE HIGH 
SIGNAL-0 = TRUE LOW 



2. Cross-References 

Schematic cross-references (from/to information) are included on the schematics. The "from" 
reference only indicates the signal "source," and the "to" reference lists all loads where the 
signal is used. All from/to information will be enclosed in parenthesis. 



From J350 pin 6 and 
board 1 , sheet 5 




(J350-6, 1-5) XI 
(1-6) Y-1 




From board 1, 
sheet 6 




INPUT SIGNAL 
(TRUE HIGH) 



To board 1 , sheet 5, 
etc. 




XY-0 (1-5,3-7,4-6) 



OUTPUT SIGNAL 
(TRUE LOW) 



Board # 



1 



8 



_9_ 

15- 
11 



Name of Board 



Power Supply 



CPU 



Memory 



Display 



Keyboard 



Tape Drive 



Tape Status 



Indicator Lights 



Firmware Backpack 



Communication Interface 



Schematic Section 



4051 Schematics 



Communication ROM 



Firmware Backpack 



Communication Backpack 



7-2 



4051 SERVICE VOL. 2 



Section 8— FIRMWARE BACKPACK 



REPLACEABLE PARTS 



PARTS ORDERING INFORMATION 

Replacement parts are available from or through your local 
Tektronix, Inc. Field Office or representative. 

Changes to Tektronix instruments are sometimes made to 
accommodate improved components as they become available, 
and to give you the benefit of the latest circuit improvements 
developed in our engineering department. It is therefore 
important, when ordering parts, to include the following 
information in your order: Part number, instrument type or 
number, serial number, and modification number if applicable. 

If a part you have ordered has been replaced with a new or 
improved part, your local Tektronix, Inc. Field Office or 
representative will contact you concerning any change in part 
number. 

Change information, if any, is iocated at the rear of this 
manual. 

SPECIAL NOTES AND SYMBOLS 

X000 Part first added at this serial number 

00X Part removed after this seriai number 

FIGURE AND INDEX NUMBERS 

Items in this section are referenced by figure and index 
numbers to the illustrations. 



INDENTATION SYSTEM 

This mechanical parts list is indented to indicate item 
relationships. Following is an example of the indentation system 
used in the description column. 



12 3 4 5 



Name & Description 



Assembly and lor Component 

Attaching parts for Assembly and/or Component 

Detail Part of Assembly and/or Component 
Attaching parts for Detail Part 

Parts of Detail Part 

Attaching parts for Parts of Detail Part 



Attaching Parts always appear in the same indentation as 
the item it mounts, while the detail parts are indented to the right. 
Indented items are part of, and included with, the next higher 
indentation. The separation symbol — * — indicates the end of 
attaching parts. 

Attaching parts must be purchased separately, unless otherwise 
specified. 



ITEM NAME 

In the Parts List, an Item Name is separated from the 
description by a colon (:). Because of space limitations, an Item 
Name may sometimes appear as incomplete. For further Item 
Name identification, the U.S. Federal Cataloging Handbook H6-1 
can be utilized where possible. 



ABBREVIATIONS 





INCH 


ELCTRN 


ELECTRON 


IN 


INCH 


SE 


SINGLE END 


# 


NUMBER SIZE 


ELEC 


ELECTRICAL 


INCAND 


INCANDESCENT 


SECT 


SECTION 


ACTR 


ACTUATOR 


ELCTLT 


ELECTROLYTIC 


INSUL 


INSULATOR 


SEMICOND SEMICONDUCTOR 


ADPTR 


ADAPTER 


ELEM 


ELEMENT 


INTL 


INTERNAL 


SHLD 


SHIELD 


ALIGN 


ALIGNMENT 


EPL 


ELECTRICAL PARTS LIST 


LPHLDR 


LAMPHOLDER 


SHLDR 


SHOULDERED 


AL 


ALUMINUM 


EQPT 


EQUIPMENT 


MACH 


MACHINE 


SKT 


SOCKET 


ASSEM 


ASSEMBLED 


EXT 


EXTERNAL 


MECH 


MECHANICAL 


SL 


SLIDE 


ASSY 


ASSEMBLY 


FIL 


FILLISTER HEAD 


MTG 


MOUNTING 


SLFLKG 


SELF-LOCKING 


ATTEN 


ATTENUATOR 


FLEX 


FLEXIBLE 


NIP 


NIPPLE 


SLVG 


SLEEVING 


AWG 


AMERICAN WIRE GAGE 


FLH 


FLAT HEAD 


NON WIRE 


NOT WIRE WOUND 


SPR 


SPRING 


BD 


BOARD 


FLTR 


FILTER 


OBD 


ORDER BY DESCRIPTION 


SQ 


SQUARE 


BRKT 


BRACKET 


FR 


FRAME or FRONT 


OD 


OUTSIDE DIAMETER 


SST 


STAINLESS STEEL 


BRS 


BRASS 


FSTNR 


FASTENER 


OVH 


OVAL HEAD 


STL 


STEEL 


BRZ 


BRONZE 


FT 


FOOT 


PH BRZ 


PHOSPHOR BRONZE 


SW 


SWITCH 


BSHG 


BUSHING 


FXD 


FIXED 


PL 


PLAIN or PLATE 


T 


TUBE 


CAB 


CABINET 


GSKT 


GASKET 


PLSTC 


PLASTIC 


TERM 


TERMINAL 


CAP 


CAPACITOR 


HDL 


HANDLE 


PN 


PART NUMBER 


THD 


THREAD 


CER 


CERAMIC 


HEX 


HEXAGON 


PNH 


PAN HEAD 


THK 


THICK 


CHAS 


CHASSIS 


HEX HD 


HEXAGONAL HEAD 


PWR 


POWER 


TNSN 


TENSION 


CKT 


CIRCUIT 


HEX SOC 


HEXAGONAL SOCKET 


RCPT 


RECEPTACLE 


TPG 


TAPPING 


COMP 


COMPOSITION 


HLCPS 


HELICAL COMPRESSION 


RES 


RESISTOR 


TRH 


TRUSS HEAD 


CONN 


CONNECTOR 


HLEXT 


HELICAL EXTENSION 


RGD 


RIGID 


V 


VOLTAGE 


COV 


COVER 


HV 


HIGH VOLTAGE 


RLF 


RELIEF 


VAR 


VARIABLE 


CPLG 


COUPLING 


IC 


INTEGRATED CIRCUIT 


RTNR 


RETAINER 


W/ 


WITH 


CRT 


CATHODE RAY TUBE 


ID 


INSIDE DIAMETER 


SCH 


SOCKET HEAD 


WSHR 


WASHER 


DEG 


DEGREE 


IDENT 


IDENTIFICATION 


SCOPE 


OSCILLOSCOPE 


XFMR 


TRANSFORMER 


DWR 


DRAWER 


IMPLR 


IMPELLER 


SCR 


SCREW 


XSTR 


TRANSISTOR 



4051 SERVICE VOL. 2 



8-1 



REPLACEABLE PARTS-FIRMWARE BACKPACK 

CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER 

Mfr. Code Manufacturer Address City, State, Zip 

01121 ALLEN-BRADLEY COMPANY 1201 2ND STREET SOUTH MILWAUKEE, WI 53204 

01295 TEXAS INSTRUMENTS, INC., SEMICONDUCTOR 

GROUP P BOX 5012, 13500 N CENTRAL 

EXPRESSWAY DALLAS, TX 75222 

04713 MOTOROLA, INC., SEMICONDUCTOR PROD. DIV. 5005 E MCDOWELL RD,PO BOX 20923 PHOENIX, AZ 85036 

05574 VIKING INDUSTRIES, INC. 21001 NORDHOFF STREET CHATSWORTH, CA 91311 

56289 SPRAGUE ELECTRIC CO. NORTH ADAMS, MA 01247 
77250 PHEOLL MANUFACTURING CO. , DIVISION 

OF ALLIED PRODUCTS CORP. 5700 W. ROOSEVELT RD. CHICAGO, IL 60650 

80009 TEKTRONIX, INC. P BOX 500 BEAVERTON, OR 97077 

83385 CENTRAL SCREW CO. 2530 CRESCENT DR. BROADVIEW, IL 60153 

91637 DALE ELECTRONICS, INC. P. 0. BOX 609 COLUMBUS, NE 68601 



8-2 @ 4051 SERVICE VOL. 2 



REPLACEABLE PARTS— FIRMWARE BACKPACK 



Ikt No. 



Tektronix Serial/Model No. 
Part No. Eft Dscont 



Electrical 



Name & Description 



Mfr 
Code 



Mfr Part Number 



Al 


670-4325-00 B010151 


Al 


670-4325-01 B030540 


C101 


283-0010-00 


C102 


283-0010-00 


C103 


290-0534-00 


C201 


290-0745-00 


C241 


283-0010-00 


C321 


290-0745-00 


C322 


290-0745-00 


C341 


283-0010-00 


J91 


131-1909-00 


J92 


131-1909-00 


P5 


131-1791-00 



CKT BOARD ASSY: FIRMWARE BACK PACK 
CKT BOARD ASSY: FIRMWARE BACK PACK 

CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,ELCTLT:1UF,20%,35V 
CAP. ,FXD,ELCTLT:22UF,+50-10%,25V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 

CAP. ,FXD,ELCTLT:22UF, +50-10%, 25V 
CAP. ,FXD,ELCTLT:22UF, +50-10%, 25V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 

CONN, RCPT,ELEC: CKT BD, 22/44 CONTACT 
CONN, RCPT,ELEC: CKT BD, 22/44 CONTACT 

CONN, RCPT,ELEC: BOARD EDGE, 25/50 CONTACT 



Q321 151-0302-00 B010151 B010202X TRANS ISTOR:SILICON,NPN 



R201 


321-0184-00 






R202 


321-0173-00 






R221 


315-0472-00 






R321 


315-0103-00 


B010151 


B010202X 


U101 


156-0747-00 


B010151 


B030539 


U101 


156-0747-01 


B030540 




U201 


156-0748-00 


B010151 


B030539 


U201 


156-0748-01 


B030540 




U221 


156-0392-00 






U241 


156-0469-00 






U321 


156-0469-00 






U341 


156-0469-00 






U441 


156-0382-00 


XB010203 





RES. ,FXD,FILM:806 OHM,1%,0. 125W 
RES., FXD, FILM: 619 OHM,1%,0.125W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES. ,FXD,CMPSN:10K OHM,5%,0.25W 

MICROCIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:QUAD LATCH 

MICROCIRCUIT,-DI;3-LINE TO 8-LINE DECODER 
MICROCIRCUIT,DI:3-LINE TO 8-LINE DECODER 
MICROCIRCUIT,DI: 3-LINE TO 8-LINE DECODER 
MICROCIRCUIT,DI:QUAD 2-INPUT NAND GATE 



80009 670-4325-00 

80009 670-4325-01 

56289 273C20 

56289 273C20 

56289 196D105X0035HA1 

56289 502D225 

56289 273C20 

56289 502D225 

56289 502D225 

56289 273C20 

05574 3VH22/1JN3 

05574 3VH22/1JN3 

05574 3VH25/1JND5 

04713 2N2222A 

91637 MFF1816G806R0F 

91637 MFF1816G619R0F 

01121 CB4725 

01121 CB1035 

80009 156-0747-00 

80009 156-0747-01 

80009 156-0748-00 

80009 156-0748-01 

01295 SN74LS175N 

01295 SN74L-S138N 

01295 SN74LS138N 

01295 SN74LS138N 

01295 SN74LS00N 



4051 SERVICE VOL. 2 



8-3 



REPLACEABLE PARTS— FIRMWARE BACKPACK 




Fig. & 
Index 
No. 



Mechanical 



-l 

-2 



-3 
-4 



Tektronix Serial/Model No. 
Part No. Eff Dscont 



020-0147-00 



211-0530-00 
211-0623-00 



200-1887-00 
211-0008-00 



Qty 12 3 4 5 



Name & Description 



1 ACCESSORY PKG: OPTIONAL FIRMWARE BACKPACK 

(ATTACHING PARTS) 

2 SCREW, MACHINE: 6-3 2 X 1.75 INCH, PNH STL 

2 SCREW,MACHINE:6-32 X 2.25 INCHES, PNH, STL 

- . BACKPACK ASSY INCLUDES: 

1 . COVER, FIRMWARE: 

(ATTACHING PARTS) 

2 . SCREW, MACHINE: 4 -40 X 0.25 INCH, PNH STL 



Mfr 

Code Mfr Part Number 



80009 020-0147-00 

83385 OBD 
83385 OBD 



80009 200-1887-00 
83385 OBD 



8-4 



4051 SERVICE VOL. 2 



REPLACEABLE PARTS— FIRMWARE BACKPACK 



Fig. & 

Index Tektronix Serial/ Model No. 

No. Part No. Eft Dscont 



Qtv 12 3 4 5 



Name & Descriotion 



Mfr 
Code 



Mfr Part Number 



-5 



-6 



200-1851-00 



213-0054-00 



-8 213-0054-00 



•9 


129-0561-00 


■10 


214-1458-00 


■11 


131-1791-00 


■12 


211-0198-00 


•13 


129-0248-00 


•14 


351-0500-00 


■15 


211-0198-00 


•16 


131-1909-00 


■17 


136-0578-00 


■18 


351-0452-00 



1 . COVER, ROM PACK: 80009 200-1851-00 

(ATTACHING PARTS) 

2 . SCR,TPG,THD FOR:6-32 X 0.312 INCH,PNH STL 83385 OBD 

1 . CKT BOARD ASSY; FIRMWARE BACK PACK (SEE Al EPL) 

(ATTACHING PARTS) 

3 . SCR,TPG,THD FOR:6-32 X 0.312 INCH,PNH STL 83385 OBD 

- . . CKT BOARD ASSY INCLUDES: 

2 . . SPACER, POST: 0.535 L,W-4-40 INTL ONE END 80009 129-0561-00 
1 . . KEY, CONN PLZN: 05574 091-0071-00 

1 . . CONN, RCPT,ELEC: CKT BD, 25/50 CONTACT 05574 3VH25/1JND5 

(ATTACHING PARTS) 

2 . . SCREW, MACHINE: 4 -40 X 0.438 PNH,STL,POZ 77250 OBD 

2 . . SPACER, POST: 0.663 INCH LONG,BRS 80009 129-0248-00 

4 . . GUIDE, CKT CARD: 80009 351-0500-00 

(ATTACHING PARTS FOR EACH) 

1 . . SCREW, MACHINE :4-40 X 0.438 PNH,STL,POZ 77250 OBD 

2 . . CONN, RCPT,ELEC: CKT BD, 22/44 CONT 05574 3 VH 22/1JN3 
2 . . SOCKET,PLUG-IN:24 DIP, LOW PROFILE 01295 C932402 

1 . GUIDE, ROM PACK: 80009 351-0452-00 



4051 SERVICE VOL 2 



8-5 



Section 9 

COMMUNICATION BACKPACK SCHEMATICS 

Symbols and Reference Designators 

Electrical components shown on the diagrams are in the following units unless noted otherwise: 

Capacitors = Values one or greater are in picofarads (pF). 
Values less than one are in microfarads (juF). 
Resistors = Ohms (O). 

Graphic symbols and class designation letters are based on ANSI Standard Y32.2-1975. 

Logic symbology is based on ANSI Y32. 14-1973 in terms of positive logic. Logic symbols depict the logic 
function performed and may differ from the manufacturer's data. 

Abbreviations are based on ANSI Y1. 1-1972. 

Other ANSI standards that are used in the preparation of diagrams by Tektronix, Inc. are: 

Y14.15, 1966 Drafting Practices. 
Y14.2, 1973 Line Conventions and Lettering. 

Y10.5, 1968 Letter Symbols for Quantities Used in Electrical Science and 

Electrical Engineering. 

The following prefix letters are used as reference designators to identify components or assemblies on the diagrams. 



A 


Assembly, separable or repairable 


H 


Heat dissipating device (heat sink, 


S 


Switch or contactor 




(circuit board, etc) 




heat radiator, etc) 


j 


Transformer 


AT 


Attenuator, fixed or variable 


HR 


Heater 


TC 


Thermocouple 


B 


Motor 


HY 


Hybrid circuit 


TP 


Test point 


BT 


Battery 


J 


Connector, stationary portion 


U 


Assembly, inseparable or non-repairable 


C 


Capacitor, fixed or variable 


K 


Relay 




(integrated circuit, etc.) 


CB 


Circuit breaker 


L 


Inductor, fixed or variable 


V 


Electron tube 


CR 


Diode, signal or rectifier 


M 


Meter 


VR 


Voltage regulator (zener diode, etc.) 


DL 


Delay line 


P 


Connector, movable portion 


W 


Wirestrap or cable 


US 


Indicating device (lamp) 


Q 


Transistor or silicon-controlled 


Y 


Crystal 


E 


Spark Gap, Ferrite bead 




rectifier 


Z 


Phase shifter 


F 


Fuse 


p 


Rocictnr fivoH r\r uariaHIo 






FL 


Filter 


RT 


Thermistor 







The following special symbols may appear on the diagrams: 
Strap or Link 

Cam Switch 
Closure Chart 
(Dot indicates 
switch closure) 



SEL Value Selected 
at Factory 




Plug to E.C. Board 

I Box I Identifies Panel 
^-r- — j Controls, Connectors and 
°^kr Indicators 

Modified Component— See 
Parts List (Depicted in grey, 
or with grey outline) 



Plug Index 



Test Voltage 



Internal 

Screwdriver 

Adjustment 



Board Name 



Board No. 

&7C--XXXX-XX 

4051 SERVICE VOL. 2 



Reference to Board 
and Sheet No. 



^VERTICAL BOARD 
VERTICAL AMPUFtER~^-3 



Coaxial Connector 

Shielding 

Heat Sink 

Decoupled or Filtered 
Voltage 

Etched Circuit Board 
Outlined in Black 

Schematic Name 
Sheet No. 



9-1 

Board Sequence No. 



COMMUNICATION BACKPACK SCHEMATICS 



1. TRUE HIGH and TRUE LOW Signals 

Signal names on the schematics are followed by -1 or —0. A TRUE HIGH signal is indicated by 
— 1, and a TRUE LOW signal is indicated by -0. 

SIGNAL-1 -TRUE HIGH 
SIGNAL-0 = TRUE LOW 



2. Cross-References 

Schematic cross-references (from/to information) are included on the schematics. The "from" 
reference only indicates the signal "source," and the "to" reference lists all loads where the 
signal is used. All from/to information will be enclosed in parenthesis. 



From J350 pin 6 and 
board 1 , sheet 5 



(J350-6, 1-5) X 1 
(1-6) Y-1 



From board 1 , 
sheet 6 




To board 1 , sheet 5, 
etc. 



r> 




INPUT SIGNAL 
(TRUE HIGH) 



XY-0 (1-5,3-7,4-6) 



OUTPUT SIGNAL 
(TRUE LOW) 



Board # 


Name of Board 


Schematic Section 


1 


Power Supply 




2 


CPU 




3 


Memory 




4 


Display 


4051 Schematics 


5 


Keyboard 




6 


Tape Drive 




7 


Tape Status 




8 


Indicator Lights 




9 


Firmware Backpack 


Firmware Backpack 


10 


Communication Interface 


Communication Backpack 


11 


Communication ROM 



9-2 



4051 SERVICE VOL. 2 



Section 10-COMMUNICATION BACKPACK 



REPLACEABLE PARTS 



PARTS ORDERING INFORMATION 

Replacement parts are available from or through your local 
Tektronix, Inc. Field Office or representative. 

Changes to Tektronix instruments are sometimes made to 
accommodate improved components as they become available, 
and to give you the benefit of the iatest circuit improvements 
developed in our engineering department. It is therefore 
important, when ordering parts, to include the following 
information in your order: Part number, instrument type or 
number, serial number, and modification number if applicable. 



INDENTATION SYSTEM 

This mechanical parts list is indented to indicate item 
relationships. Following is an example of the indentation system 
used in the description column. 



12 3 4 5 



Name & Description 



Attaching parts for Assembly and/or Component 

Detail Part of Assembly and/or Component 
Attaching parts for Detail Part 



If a part you have ordered has been replaced with a new or 
improved part, your local Tektronix, Inc. Field Office or 
representative will contact you concerning any change in part 
number. 



Parts of Detail Part 

Attaching parts for Parts of Detail Part 



Change information, if any, Is located at the rear of this 
manual. 

SPECIAL NOTES AND SYMBOLS 

X000 Part first added at this serial number 
00X Part removed after this serial number 

FIGURE AND INDEX NUMBERS 

Items in this section are referenced by figure and index 
numbers to the illustrations. 



Attaching Parts always appear in the same indentation as 
the item it mounts, while the detail parts are indented to the right. 
Indented items are part of, and included with, the next higher 
indentation. The separation symbol — * — indicates the end of 
attaching parts. 

Attaching parts must be purchased separately, unless otherwise 
specified. 



ITEM NAME 

In the Parts List, an Item Name is separated from the 
description by a colon (:). Because of space limitations, an Item 
Name may sometimes appear as incomplete. For further Item 
Name identification, the U.S. Federal Cataloging Handbook H6-1 
can be utilized where possible. 



ABBREVIATIONS 





INCH 


ELCTRN 


ELECTRON 


IN 


INCH 


SE 


SINGLE END 


# 


NUMBER SIZE 


ELEC 


ELECTRICAL 


INCAND 


INCANDESCENT 


SECT 


SECTION 


ACTR 


ACTUATOR 


ELCTLT 


ELECTROLYTIC 


INSUL 


INSULATOR 


SEMICOND SEMICONDUCTOR 


ADPTR 


ADAPTER 


ELEM 


ELEMENT 


INTL 


INTERNAL 


SHLD 


SHIELD 


ALIGN 


ALIGNMENT 


EPL 


ELECTRICAL PARTS LIST 


LPHLDR 


LAMPHOLDER 


SHLDR 


SHOULDERED 


AL 


ALUMINUM 


EQPT 


EQUIPMENT 


MACH 


MACHINE 


SKT 


SOCKET 


ASSEM 


ASSEMBLED 


EXT 


EXTERNAL 


MECH 


MECHANICAL 


SL 


SLIDE 


ASSY 


ASSEMBLY 


FIL 


FILLISTER HEAD 


MTG 


MOUNTING 


SLFLKG 


SELF-LOCKING 


ATTEN 


ATTENUATOR 


FLEX 


FLEXIBLE 


NIP 


NIPPLE 


SLVG 


SLEEVING 


AWG 


AMERICAN WIRE GAGE 


FLH 


FLAT HEAD 


NON WIRE 


NOT WIRE WOUND 


SPR 


SPRING 


BD 


BOARD 


FLTR 


FILTER 


OBD 


ORDER BY DESCRIPTION 


SQ 


SQUARE 


BRKT 


BRACKET 


FR 


FRAME or FRONT 


OD 


OUTSIDE DIAMETER 


SST 


STAINLESS STEEL 


BRS 


BRASS 


FSTNR 


FASTENER 


OVH 


OVAL HEAD 


STL 


STEEL 


BRZ 


BRONZE 


FT 


FOOT 


PH BRZ 


PHOSPHOR BRONZE 


SW 


SWITCH 


BSHG 


BUSHING 


FXD 


FIXED 


PL 


PLAIN or PLATE 


T 


TUBE 


CAB 


CABINET 


GSKT 


GASKET 


PLSTC 


PLASTIC 


TERM 


TERMINAL 


CAP 


CAPACITOR 


HDL 


HANDLE 


PN 


PART NUMBER 


THD 


THREAD 


CFR 


CERAMIC 


HEX 


HEXAGON 


PNH 


PAN HEAD 


THK 


THICK 


CHAS 


CHASSIS 


HEX HD 


HEXAGONAL HEAD 


PWR 


POWER 


TNSN 


TENSION 


CKT 


CIRCUIT 


HEX SOC 


HEXAGONAL SOCKET 


RCPT 


RECEPTACLE 


TPG 


TAPPING 


COMP 


COMPOSITION 


HLCPS 


HELICAL COMPRESSION 


RES 


RESISTOR 


TRH 


TRUSS HEAD 


CONN 


CONNECTOR 


HLEXT 


HELICAL EXTENSION 


RGD 


RIGID 


V 


VOLTAGE 


COV 


COVER 


HV 


HIGH VOLTAGE 


RLF 


RELIEF 


VAR 


VARIABLE 


CPLG 


COUPLING 


IC 


INTEGRATED CIRCUIT 


RTNR 


RETAINER 


W/ 


WITH 


CRT 


CATHODE RAY TUBE 


ID 


INSIDE DIAMETER 


SCH 


SOCKET HEAD 


WSHR 


WASHER 


DEG 


DEGREE 


IDENT 


IDENTIFICATION 


SCOPE 


OSCILLOSCOPE 


XFMR 


TRANSFORMER 


DWR 


DRAWER 


IMPLR 


IMPELLER 


SCR 


SCREW 


XSTR 


TRANSISTOR 



4051 SERVICE VOL. 2 



10-1 



REPLACEABLE PARTS— COMMUNICATION BACKPACK 



CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER 



Mfr. Code 



Manufacturer 



Address 



City, State, Zip 



00779 AMP, INC. 
01121 ALLEN-BRADLEY COMPANY 

01295 TEXAS INSTRUMENTS, INC., SEMICONDUCTOR 
GROUP 

04713 MOTOROLA, INC. , SEMICONDUCTOR PROD. DIV. 

05574 VIKING INDUSTRIES, INC. 

18324 SIGNETICS CORP. 

22526 BERG ELECTRONICS, INC. 

54492 CINCH COMPANY 

56289 SPRAGUE ELECTRIC CO. 

71468 ITT CANNON ELECTRIC 

72136 ELECTRO MOTIVE CORPORATION, SUB OF 

INTERNATIONAL ELECTRONICS CORPORATION 
72982 ERIE TECHNOLOGICAL PRODUCTS, INC. 
73138 BECKMAN INSTRUMENTS, INC., HELIPOT DIV. 
73743 FISCHER SPECIAL MFG. CO. 
73803 TEXAS INSTRUMENTS, INC., METALLURGICAL 

MATERIALS DIV. 
75037 MINNESOTA MINING AND MFG. CO. , ELECTRO 

PRODUCTS DIVISION 
77250 PHEOLL MANUFACTURING CO. , DIVISION 

OF ALLIED PRODUCTS CORP. 
80009 TEKTRONIX, INC. 
83385 CENTRAL SCREW CO. 
91637 DALE ELECTRONICS, INC. 



P BOX 3608 

1201 2ND STREET SOUTH 

P O BOX 5012, 13500 N CENTRAL 

EXPRESSWAY 

5005 E MCDOWELL RD,PO BOX 20923 

21001 NORDHOFF STREET 

811 E. ARQUES 

YOUK EXPRESSWAY 

6126 MONTECITO BLVD. ,PO BOX 167 

666 E. DYER RD. 

SOUTH PARK AND JOHN STREETS 
644 W. 12TH ST. 
2500 HARBOR BLVD. 
446 MORGAN ST. 

34 FOREST STREET 

3M CENTER 

5700 W. ROOSEVELT RD. 
P BOX 500 
2530 CRESCENT DR. 
P. 0. BOX 609 



HARRISBURG, PA 17105 
MILWAUKEE, WI 53204 



DALLAS, TX 75222 
PHOENIX, AZ 85036 
CHATSWORTH, CA 91311 
SUNNYVALE, CA 94086 
NEW CUMBERLAND, PA 17070 
SANTA ROSA, CA 95402 
NORTH ADAMS, MA 01247 
SANTA ANA, CA 92702 

WILLIMANTIC, CT 06226 
ERIE, PA 16512 
FULLERTON, CA 92634 
CINCINNATI, OH 45206 

ATTLEBORO, MA 02703 

ST. PAUL, MN 55101 

CHICAGO, IL 60650 
BEAVERTON, OR 97077 
BROADVIEW, IL 60153 
COLUMBUS, NE 68601 



10-2 



4051 SERVICE VOL. 2 



REPLACEABLE PARTS— COMMUNICATION BACKPACK 



Tektronix Serial/Model No. 
Ckt No. Part No. Eff Dscont 



Electrical 



Name & DescriDtion 



Mfr 

Code Mfr Part Number 



Al 


670-4331-00 


A2 


670-4332-00 


Al 


670-4331-00 


C5 


283-0010-00 


C25 


283-0010-00 


C105 


283-0010-00 


CllO 


290-0745-00 


cm 


290-0745-00 


C112 


290-0745-00 


C115 


283-0010-00 


C125 


283-0010-00 


C225 


283-0080-00 


C226 


283-0687-00 


C245 


283-0010-00 


J91 


131-1909-00 


J92 


131-1909-00 


J93 


131-1437-00 


P5 


131-1791-00 


R35 


315-0472-00 


RllO 


315-0821-00 


R125 


315-0222-00 


R135 


315-0472-00 


R225 


315-0472-00 


R226 


321-0320-00 


R228 


321-0311-00 


R229 


321-0373-00 


R235 


315-0101-00 


R255 


311-1238-00 


U5 


156-0427-00 


U25 


156-0658-00 


U35 


156-0383-00 


U105 


156-0469-00 


U115 


156-0469-00 


U125 


156-0741-00 


U135 


156-0138-00 


U225 


156-0402-00 


U235 


156-0139-00 


U245 


156-0139-00 


VR105 


152-0195-00 


A2 


670-4332-00 


C31 


290-0745-00 


C51 


283-0116-00 


C61 


283-0116-00 


C63 


290-0745-00 


C101 


283-0010-00 


cm 


283-0010-00 


C121 


283-0010-00 


C131 


290-0534-00 


C132 


283-0010-00 



CKT BOARD ASSY: COMMUNICATION 
CKT BOARD ASSY: ROM 

XB010119 B019999X CKT BOARD ASSY:DAUGHTER 

CKT BOARD ASSY : COMMUNICATION 

CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 

CAP. ,FXD,ELCTLT:22UF, +50-10%, 25V 

CAP. ,FXD,ELCTLT:22UF, +50-10%, 25V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:0.022UF, +80-20%, 25V 
CAP. ,FXD, MICA D:560PF,2%,30OV 

CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 

CONN ,RCPT,ELEC: CKT BD, 22/44 CONTACT 
CONN, RCPT,ELEC: CKT BD, 22/44 CONTACT 
CONN,RCPT,ELEC:25 FEMALE CONTACT 

CONN, RCPT,ELEC: BOARD EDGE, 25/50 CONTACT 

RES.,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES.,FXD,CMPSN:820 OHM,5%,0.25W 
RES.,FXD,CMPSN:2.2K OHM,5%,0.25W 
RES.,FXD,CMPSN:4.7K OHM,5%,0.25W 
RES.,FXD,CMPSN:4.7K OHM,5%,0.25W 

RES., FXD, FILM: 2 IK OHM,1%,0.125W 
RES.,FXD,FILM:16.9K OHM, 1%,0.125W 
RES. , FXD, FILM: 7 5K OHM, 1%,0.125W 
RES.,FXD,CMPSN:100 OHM,5%,0.25W 
RES. ,VAR,NONWIR:5K OHM,10%,0.50W 

MICROCIRCUIT,DI PERIPHERAL INTERFACE ADPTR 
MICROCIRCUIT,DI ASYNCHRONOUS COMM INT ADPT 
MICROCIRCUIT, DI: QUAD 2-INPUT NOR GATE 
MICROCIRCUIT,DI:3-LINE TO 8-LINE DECODER 
MICROCIRCUIT,DI: 3-LINE TO 8-LINE DECODER 

MICROCIRCUIT,DI:4-BIT BINARY COUNTER 
MICROCIRCUIT, LI: QUAD LINE RECEIVER 
MICROCIRCUIT , DI : TIMER 
MICROCIRCUIT,LI:DUAL LINE DRIVER 
MICROCIRCUIT, LI: DUAL LINE DRIVER 

SEMICOND DEVICE:ZENER,0.4W,5.1V,5% 



CKT BOARD ASSY: ROM 

CAP. , FXD, ELCTLT:22UF, +50-10%, 25V 
CAP.,FXD,CER DI:820PF,5%,500V 
CAP.,FXD,CER DI:820PF,5%,500V 
CAP. , FXD, ELCTLT:22UF, +50-10%, 25V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 

CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,ELCTLT:1UF,20%,35V 
CAP.,FXD,CER DI:0.05UF, +100-20%, 50V 



80009 670-4331-00 
80009 670-4332-00 



80009 670-4331-00 

56289 273C20 

56289 273C20 

56289 273C20 

56289 502D225 

56289 502D225 

56289 502D225 

56289 273C20 

56289 273C20 

56289 19C611 

72136 DM15E561G0300 

56289 273C20 

05574 3VH22/1JN3 

05574 3VH22/1JN3 

54492 DB-25-S-F179 

05574 3VH2511JND5 

01121 CB4725 

01121 CB8215 

01121 CB2225 

01121 CB4725 

01121 CB4725 

91637 MFF1816G21001F 

91637 MFF1816G16901F 

91637 MFF1816G75001F 

01121 CB1015 

73138 72X-27-0.502K 

80009 156-0427-00 

04713 MC6850L 

01295 SN74LS02N 

01295 SN74LS138N 

01295 SN74LS138N 

80009 156-0741-00 

01295 SN75154N 

18324 NE555V 

01295 SN75150P 

01295 SN75150P 

80009 152-0195-00 



80009 670-4332-00 

56289 502D225 

72982 801-547B821J 

72982 801-547B821J 

56289 502D225 

56289 273C20 

56289 273C20 

56289 273C20 

56289 196D105X0035HA1 

56289 273C20 



4051 SERVICE VOL. 2 



10-3 



REPLACEABLE PARTS— COMMUNICATION BACKPACK 



Ckt No. 



Tektronix Serial/Model No. 
Part No. Eff Dscont 



Name & Description 



Q31 


151-0301-00 






041 


151-0301-00 






R31 


315-0102-00 






R41 


315-0102-00 






Ul 


156-0747-01 






Ull 


156-0748-01 






U21 


156-0469-00 






U31 


156-0469-00 






U101 


156-0712-00 


B010100 


B019999 


U101 


156-0712-01 


B020000 




Ulll 


156-0713-00 


B010100 


B019999 


Ulll 


156-0713-01 


B020000 




U121 


156-0714-00 


B010100 


B019999 


U121 


156-0714-01 


B020000 




U131 


156-0715-00 


B010100 


B019999 


U131 


156-0715-01 


B020000 




VR31 


152-0217-00 






VR41 


152-0217-00 


XB010119 


B019999 



CI 

Q21 

Rl 
Rll 

Ul 
Ull 
U21 
U31 



TRANS ISTOR:SILICON,PNP 
TRANS ISTOR : S ILICON , PNP 

RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES.,FXD,CMPSN:1K OHM,5%,0.25W 

MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICR0CIRCUIT,DI:3-LINE TO 8-LINE DECODER 
MICROCIRCUIT,DI: 3-LINE TO 8-LINE DECODER 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 

MICROCIRCUIT,DI:ROM CUSTOM MASK 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:ROM CUSTOM MASK 
MICR0CIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:ROM CUSTOM MASK 

MICROCIRCUIT,DI:16K ROM, CUSTOM MASK 
MICROCIRCUIT,DI:ROM CUSTOM MASK 

SEMICOND DEVICE :ZENER,0.4W, 8.2V, 5% 
SEMICOND DEVICE :ZENER,0.4W, 8.2V, 5% 



283-0010-00 XB010119 B019999X CAP. ,FXD,CER DI :0.05UF, +100-20%, 50V 
151-0188-00 XB010119 B019999X TRANS ISTOR: SILICON, PNP 



315-0330-00 
315-0202-00 

156-0718-00 
156-0718-00 
156-0467-00 
156-0465-00 



XB010119 B019999X RES. , FXD , CMPSN : 3 3 OHM,5%,0.25W 

XB010119 B019999X RES. ,FXD,CMPSN:2K OHM,5%,0.25W 

XB010119 B019999X MICROCIRCUIT,DI : TRIPLE 3-INP POS-NOR GATES 

XB010119 B019999X MICROCIRCUIT,DI: TRIPLE 3-INP POS-NOR GATES 

XB010119 B019999X MICROCIRCUIT,DI :QUAD 2-INPUT NAND BUFFER 

XB010119 B019999X MICROCIRCUIT,DI:8-INPUT NAND GATE 



Mfr 




Code 


Mfr Part Number 


04713 


2N2907A 


04713 


2N2907A 


01121 


CB1025 


01121 


CB1025 


80009 


156-0747-01 


80009 


156-0748-01 


01295 


SN74LS138N 


01295 


SN74LS138N 


80009 


156-0712-00 


80009 


156-0712-01 


80009 


156-0713-00 


80009 


156-0713-01 


80009 


156-0714-00 


80009 


156-0714-01 


80009 


156-0715-00 


80009 


156-0715-01 


80009 


152-0217-00 


80009 


152-0217-00 



56289 273C20 

01295 2N3906 

01121 CB3305 

01121 CB2025 

80009 156-0718-00 

80009 156-0718-00 

01295 SN74LS38N 

01295 SN74LS30N 



10-4 



4051 SERVICE VOL. 2 



REPLACEABLE PARTS-COMMUNICATION BACKPACK 




Fig. & 
Index 
No. 


Tektronix Ser 
Part No. Eff 




021-0188-00 


-l 

-2 


211-0530-00 
211-0623-00 


-3 


351-0452-00 


-4 


213-0054-00 


-5 

-6 
-7 


200-1851-01 
175-1778-00 
131-0833-00 
175-1084-00 



Mechanical 



Serial/Model No. 
Dscont 



Qty 12 3 4 5 



Name & Description 



1 INTERFACE: 4 051 TO RS232 

(ATTACHING PARTS) 

2 . SCREW, MACHINE: 6-3 2 X 1.75 INCH, PNH STL 

2 . SCREW, MACHINE: 6-3 2 X 2.25 INCHES, PNH, STL 

1 . GUIDE, ROM PACK: 

(ATTACHING PARTS) 

2 . SCR,TPG,THD FOR:6-32 X 0.312 INCH,- PNH STL 

1 . COVER, ROM PACK: 

1 . CA ASSY, SP,ELEC: 34/28 AWG,2.5 LONG 

2 . . CONNECTOR, PLUG,: 34 CONTACTS 

FT . . WIRE, ELECTRICAL: FLAT TYPE, 3 INCHES LONG 



Mfr 

Code Mfr Part Number 



80009 021-0188-00 

83385 OBD 

83385 OBD 

80009 351-0452-00 

83385 OBD 

80009 200-1851-01 

80009 175-1778-00 

75037 3414 

75037 3365 



4051 SERVICE VOL. 2 



10-5 



REPLACEABLE PARTS-COMMUNICATION BACKPACK 



Fig. & 

Index Tektronix 

No. Part No. 



-9 

-10 
-11 



■12 
-13 
-14 
-15 



-17 
-18 
-19 
-20 



-31 
-32 



Serial/Model No. 
Eft Dscont 



213-0054-00 
211-0008-00 
131-0890-00 



131-0993-00 
131-0608-00 
214-1458-00 
131-0791-00 



-16 211-0198-00 



129-0248-00 
136-0578-00 
136-0623-00 
351-0500-00 



-21 211-0198-00 

-22 131-1090-00 

-23. 131-1437-00 

-24 129-0112-00 

-25 

-26 131-0608-00 

-27 136-0578-00 

-28 

-29 

-30 344-0131-00 



211-0008-00 
210-0406-00 



Qty 12 3 4 5 



Name & Description 



1 . CKT BOARD ASSY: COMMUNICATION (SEE Al EPL) 

(ATTACHING PARTS) 

3 . SCR,TPG,THD F0R:6-32 X 0.312 INCH,PNH STL 

4 . SCREW, MACHINE :4-40 X 0.25 INCH,PNH STL 

2 . LOCK, CONNECTOR: 4-40 X 0.312 £ 

- . . CKT BOARD ASSY INCLUDES: 

1 . . LINK,TERM.C0NNE:2 WIRE BLACK 

38 . . CONTACT, ELEC: 0.365 INCH LONG 

1 . . KEY, CONN PLZN: 

1 . . TERM, STUD:0. 375 L X 0.0203 INCH 

(ATTACHING PARTS) 

2 . . SCREW, MACHINE: 4-40 X 0.438 PNH,STL,POZ 

2 . . SPACER, POST: 0.663 INCH L0NG,BRS 

1 . . SOCKET, PLUG-IN: 24 DIP, LOW PROFILE 

1 . . SOCKET, PLUG- IN: 40 DIP, LOW PROFILE 

4 . . GUIDE, CKT CARD: 

(ATTACHING PARTS FOR EACH) 

1 . . SCREW, MACHINE :4-40 X 0.438 PNH,STL,POZ 

2 . . CONTACT, ELEC :DL TERMN,BRS 

1 . . C0NN,RCPT,ELEC:25 FEMALE CONTACT 

6 . . SPACER, POST: 0.406 LONG 

1 . CKT BOARD ASSY: ROM (SEE A2 EPL) 

34 . . CONTACT, ELEC: 0.365 INCH LONG 

6 . . SOCKET, PLUG-IN: 24 DIP, LOW PROFILE 

1 . CKT BOARD ASSY : DAUGHTER ( SEE EPL) 

1 . . CABLE ASSY:3M 

4 . . CLIP, SPG TENS:CIRCUIT CARD MOUNTING 
(ATTACHING PARTS FOR EACH) 

1 . . SCREW, MACHINE :4-40 X 0.25 INCH,PNH STL 

1 . . NUT, PLAIN, HEX. : 4 -40 X 0.188 INCH,BRS 



Mfr 




Code 


Mfr Part Number 


83385 


OBD 


83385 


OBD 


71468 


D 20418-2 


00779 


530153-2 


22526 


47357 


05574 


091-0071-00 


80009 


131-0791-00 



77250 OBD 



80009 
01295 
73803 
80009 



129-0248-00 
C932402 
C934002 
351-0500-00 



77250 OBD 

80009 131-1090-00 

54492 DB-25-S-F179 

80009 129-0112-00 

22526 47357 

01295 C932402 



80009 344-0131-00 

83385 OBD 

73743 2X12161-402 



012-0689-00 
013-0173-01 
334-2788-00 
070-2066-01 



ACCESSORIES 

1 CABLE, INTCON: 192.0" LONG 

1 ADAPTER ASSY: SELF TEST 

5 OVERLAY, KYBD: 

1 MANUAL TERM: INST, 4050/R5282 COMM I/F 



80009 012-0689-00 
80009 013-0173-01 

80009 070-2066-01 



10-6 



4051 SERVICE VOL. 2 



Section 11 
ROM PACK DATA SHEETS 



This section contains data sheets on the optional ROM packs and special interfaces that can be 
used with the 4051 Graphic System. Each data sheet gives a brief description of the device, 
replaceable parts information, schematic diagram and any other pertinent service information 
(e.g. checksum data for ROMs). 

There are data sheets in this section for the following: 

021-0189-00 PRINTER INTERFACE 

4051 R01 MATRIX FUNCTIONS ROM PACK 

4051 R05 BINARY PROGRAM LOADER ROM PACK 

4051 R06 EDITOR ROM PACK 



Space is made available for you to enter the names or titles of other data sheets you may wish to 
add at some future time. 

Introduction For Printer 
Interface Data Sheet 



021-0189-00 PRINTER INTERFACE 

The TEKTRONIX 021-0189-00 Printer Interface is a general purpose communications module 
that is used by the 4051 Graphic System to output data to any RS-232 compatible printing 
device (i.e., the TEKTRONIX 4641 Character Line Printer). The Printer Interface can only be 
used to output data. 

The TEKTRONIX 4051 Graphic System uses the Printer Interface in conjunction with a 
Firmware Backpack (020-0147-00) or Communications Backpack (021-0188-00). The box 
portion of the Printer Interface is inserted into one of the ROM pack slots found in a backpack. 
The connector end is plugged into the RS-232 communications port of the printing equipment. 

For details of operation, refer to the 4051 Option 10 RS-232 Printer Interface Manual, part 
number 070-2119-00. 



4051 SERVICE VOL. 2 



11-1 



"fektronix 



COMMITTED TO EXCELLENCE 




CSG PUBLICATIONS/RESEARCH 



4051R01 
4051R05 
4051R06 




The Tektronix 4051 R01 Matrix Function, 4051 R05 Binary Program Loader and the 4051 R 06 Editor are 
Rom Packs which add to the capabilities of the 4051 Graphic Systems. The ROM Packs do this without 
altering or disturbing the normal operation of the system or occuping any of the available RAM (Random 
Access Memory) storage space. 

This Data Sheet provides supplimentary service information for the ROM Packs. Included are Parts Lists, 
Schematics, and a Troubleshooting Data Table giving ROM checksum information. The ROM checksum 
is an 8-bit sum of all data bytes within a ROM chip ignoring arithmetic overflow. 




4051R01 
4051R05 
4051R06 



Refer to the 



4051 R01 Matrix Functions 
4051 R05 Binary Program Loader 
4051 R06 - 4051 Editor 



manual for 



operator information. Refer to the 4051 Service manuals for detailed service information. 



ROM PACK CHECKSUM TABLES 



4051 R01 MATRIX FUNCTIONS 



Circuit No. 


Checksum 


Part No. 


U1 


FF 


See Replaceable Parts List 


4051 R05 BINARY PROGRAM LOADER 


Circuit No. 


Checksum 


Part No. 


U1 


05 


See Replaceable Parts List 


U11 


FF 


See Replaceable Parts List 


4051 R06 EDITOR 




Circuit No. 


Checksum 


Part No. 


U1 


FF 


See Replaceable Parts List 


U11 


59 


See Replaceable Parts List 


U21 


D1 


See Replaceable Parts List 


U31 


FF 


See Replaceable Parts L 



4051R01 
4051R05 
4051R06 



A&a- i 

A&T- i 
AS>4»-1 
AB.fc-1 
AE.4-1 
AS>*>-A 
A&-2.-A 
AS>< - 1 
AB>0-A 



-12. VOLTb 



T ^«-r 



+ 1?. VO\_T%> , 



A&A4--1 <- A '^ 



AE»l'i.-A < AU ° 
A&12.-A <*iL_ 
AE.U - 1 ( A ' & 



71 1 1 — 



^r 



Vbb„ 



■3 



-i 



Jl>xF 





idOO 





Oi 


lb 


an . 


n 


a\^v 


ia 


avi^ 


\<i 


&« ; 


t 


Wlj 


to 


aio^ 


■=> 


as 


4 


^6>x 



oai - 

Q6>4> - 

os.% - 

DS.4 - 
DB>a- 
QE.Z.- 
DS.1 - 

oa,o- 




4051R01 
4051R05 
4051R06 




REPLACEABLE PARTS LIST 



Fig. & 




Index 


Tektronix 


No-. 


Part No. 




4051R01 


-l 


380-0384-01 


-2 


211-0102-00 


-3 


367-0189-00 


-4 


334-2872-00 


-5 


380-0343-01 


-6 


670-4350-00 


-7 


136-0578-00 


-8 


151-0301-00 


-9 


152-0217-00 


-10 


152-0195-00 


-11 


156-0469-00 


-12 


156-0776-00 


-13 


283-0010-00 


-14 


283-0116-00 


-15 


290-0106-00 


-16 


290-0534-00 


-17 


315-0102-00 


-18 


315-0132-00 



Serial/ Model No. 
Eff Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



4051R01 
4051R05 
4051R06 



Mfr Part Number 



83385 OBD 



1 MATRIX FUNCTION:4051 ROM PACK 80009 

1 . HSG, HALF, RDOUT: LID 80009 

(ATTACHING PARTS) 

4 . SCREW, MACHINE :4-40 X 0. 500" ,FLH,STL 

1 . HANDLE, BOW: 

1 , MKR SET , IDENT : 

1 . HSG HALF, PTR: INNER, PLASTIC 

1 . CKT BOARD ASSY: MATRIX ROM PACK 

1 . . SOCKET, PLUG-IN:24 DIP, LOW PROFILE 

1 . . TRANSISTOR: SILICON, PNP, (QUI) 

1 . - SEMICOND DEVICE :ZENER,0.4W, 8.2V, 5%, (VR131) 

1 . . SEMICOND DEVICE :ZENER,0. 4W, 5.1V, 5%, (VR111) 

1 . . MICROCIRCUIT,DI:3-LINE TO 8-LINE DCDR(U131) 

1 . . MICROCIRCUIT,DI:2048 X 8 PROM, (Ul) 

2 . . CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V, (CI, C31) 

1 . . CAP ,FXD,CER DI:820PF,5%,500V, (Clll) 

2 . . CAP. ,FXD,ELCTLT:10UF, +75-10%, 15V(C100,C101) 
1 . . CAP.,FXD,ELCTLT:1UF,20%,35V, (C132) 
1 . . RES. ,FXD,CMPSN:1K OHM, 5%, 0.25, (R131) 
1 . . RES.,FXD,CMPSN:1.3K OHM,5% ,0. 25W, (R101) 



4051R01 
380-0384-01 



80009 


367-0189-00 


80009 


o J<±— -SO / i-uu 


80009 


380-0343-01 


80009 


670-4350-00 


01295 


C932402 


04713 


2N2907A 


80009 


152-0217-00 


80009 


152-0195-00 


01295 


SN74L5138N 


80009 


156-0776-00 


56289 


273C20 


72982 


801-547B821J 


56289 


30D106G015BA9 


56289 


196D105X0035HA1 


01121 


CB1025 


01121 


CB1325 





4051R05 


1 


380-0384-01 


2 


211-0102-00 


3 


367-0189-00 


■4 


334-2946-00 


■5 


380-0343-01 


■6 


670-4350-03 


■7 


136-0578-00 


-8 


151-0301-00 


■9 


152-0217-00 


■10 


152-0195-00 


■11 


156-0469-00 


•12 


156-0856-00 


■13 


283-0010-00 


•14 


283-0116-00 


-15 


290-0106-00 


-16 


290-0534-00 


■17 


315-0102-00 


■18 


315-0132-00 


■19 


156-0857-00 



BIN PRGM LOADER: 4 051 ROM PACK 
HSG , HALF , RDOUT : LID 

(ATTACHING PARTS) 
SCREW, MACHINE :4-40 X 0.500" ,FLH, STL 

HANDLE, BOW: 

MARKER, IDENT: MARKED 4051R05 

HSG HALF, PTR: INNER, PLASTIC 

CKT BOARD ASSY:BINERY PRGM LOADER ROM PACK 

. SOCKET, PLUG-IN: 24 DIP, LOW PROFILE 

. TRANSISTOR: SILICON, PNP, (QUI) 

. SEMICOND DEVICE :ZENER,0.4W, 8.2V, 5%, (VR131) 

. SEMICOND DEVICE:ZENER,0.4W,5.1V,5%, (VR111) 

, MICROCIRCUIT.DI:3-LINE TO 8-LINE DCDR(U131) 

. MICROCIRCUIT,DI:16K OHM, CUSTOM MASK, (Ul) 

. CAP.,FXD,CER DI:0.05UF, +100-20%, 50V(C1,C31) 

. CAP.,FXD,CER DI:820PF,5%,500V, (Clll) 

. CAP. ,FXD,ELCTLT:10UF, +75-10%, 15V(C100,C101) 

. CAP. ,FXD,ELCTLT:1UF,20%,35V, (C132) 

. RES. ,FXD,CMPSN:1K OHM, 5% , 0. 25 , (R131) 

. RES. ,FXD,CMPSN:1.3K OHM, 5% ,0. 25W, (R101) 

. MICROCIRCUIT,DI:16K ROM, CUSTOM MASK, (Ull) 



80009 
80009 



4051R05 
380-0384-01 



83385 OBD 



80009 


367-0189-00 


80009 


334-2946-00 


80009 


380-0343-01 


80009 


670-4350-03 


01295 


C932402 


04713 


2N2907A 


80009 


152-0217-00 


80009 


152-0195-00 


01295 


SN74L5138N 


80009 


156-0856-00 


56289 


273C20 


72982 


801-547B821J 


56289 


30D106G015BA9 


56289 


196D105X0035HA1 


01121 


CB1025 


01121 


CB1325 


80009 


156-0857-00 



1 


4051R06 
380-0384-01 


2 


211-0102-00 


3 

A 

5 
6 


367-0189-00 
334-2947-00 
380-0343-01 
670-4350-01 
670-4350-05 


7 

8 

9 

10 

11 


136-0578-00 
151-0301-00 
152-0217-00 
152-0195-00 
156-0469-00 



EDITOR: 4 051 ROM PACK 
HSG , HALF , RDOUT : LID 

(ATTACHING PARTS) 
SCREW, MACHINE :4-40 X 0.500" ,FLH, STL 

HANDLE, BOW: 

MARKER, IDENT: MARKED 4051R06 

HSG , HALF , PTR : INNER, PLASTIC 

CKT BOARD ASSY: EDITOR ROM PACK 

CKT BOARD ASSY: EDITOR ROM PACK 

. EACH CKT BOARD ASSY INCLUDES: 

. SOCKET, PLUG-IN: 24 DIP, LOW PROFILE 

. TRANSISTOR: SILICON, PNP 

. SEMICOND DEVICE:ZENER,0.4W,8.2V,5%, (VR131) 

. SEMICOND DEVICE:ZENER,0.4W,5.1V,5%, (VR111) 

. MICROCIRCUIT,DI: 3-LINE TO 8-LINE DCDR, (U131) 



80009 
80009 



4051R06 
380-0384-01 



83385 OBD 



80009 


367-0189-00 


80009 


334-2947-00 


80009 


380-0343-01 


80009 


670-4350-01 


80009 


670-4350-05 


01295 


C932402 


04713 


2N2907A 


80009 


152-0217-00 


80009 


152-0195-00 


01295 


SN74LS138N 



4051R01 
4051R05 
4051R06 



Fig. & 

Index Tektronix 

No. Part No. 



Serial/Model No. 
Eff Dscont 



Qty 12 3 4 5 



Name & Description 



156-0772-00 1 
156-0772-01 2 
283-0010-00 



Mfr 




Code 


Mfr Part Number 


80009 


156-0772-00 


80009 


156-0772-01 


56289 


273C20 


72982 


801-547B821J 


C101) 56289 


30D106G015BA9 


56289 


196D105X0035HA1 


01121 


CB1025 


01121 


CB1325 


80009 


156-0773-00 


80009 


156-0773-01 


80009 


156-0774-00 


80009 


156-0774-01 


80009 


156-0775-00 


80009 


156-0775-01 



-12 

-13 

-14 
-15 
-16 
-17 
-18 
-19 

-20 

-21 



283' 
290' 
290' 
315- 
315- 
156< 
156' 
156- 
156' 
156^ 
156^ 



-0116-00 

-0106-00 

-0534-00 

-0102-00 

-0132-00 

-0773-00 1 

-0773-01 

-0774-00 1 

-0774-01 

-0775-00 1 

-0775-01 



MICROCIRCUIT,DI:2048 X 8 PROM, (Ul) 
MICROCTRCUIT , DI : ROM , PROGRAMMED , (Ul ) 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V, 
(C1,C31,C131) 

CAP. ,FXD,CER DI:820PF,5%,500V, (Clll) 
CAP. ,FXD,ELCTLT:10UF,+75-10%,15V, (C100, 
CAP. ,FXD,ELCTLT:1UF,20%,35V, (C132) 
RES. ,FXD,CMPSN:1K OHM,5%,0.0.25W, (R131) 
RES. ,FXD,CMPSN:1.3K OHM,5%,0. 25W, (R101) 
MICROCIRCUIT,DI:2048 X 8 PROM 
MICROCIRCUIT,DI:ROM PROGRAMMED, (Ull) 
MICROCIRCUIT,DI:2048 X 8 PROM, (U21) 
MICROCIRCUIT,DI:ROM PROGRAMMED, (U21) 
MICROCIRCUIT,DI:2048 X 8 PROM, (U31) 
MICROClRCUIT,DI:ROM PROGRAMMED, (U31) 



062-3106-00 
334-2954-00 



STANDARD ACCESSORIES 

DATA SHEET :4051R01,4051R05,4051R06 
OVERLAY , KYBD : EDITOR 



80009 
80009 



062-3106-00 
334-2954-00 



^sed on 670-4350-01 only. 
: Used on 670-4350-05 only. 



CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER 



Mfr. Code 



Manufacturer 



Address 



City, State, Zip 



01121 
01295 



04713 
56289 
72982 
80009 
83385 



ALLEN-BRADLEY COMPANY 

TEXAS INSTRUMENTS, INC., SEMICONDUCTOR 

GROUP 

MOTOROLA, INC., SEMICONDUCTOR PROD. DIV. 

SPRAGUE ELECTRIC CO. 

ERIE TECHNOLOGICAL PRODUCTS, INC. 

TEKTRONIX, INC. 

CENTRAL SCREW CO. 



1201 2ND STREET SOUTH 

P BOX 5012, 13500 N CENTRAL 

EXPRESSWAY 

5005 E MCDOWELL RD,PO BOX 20923 

644 W. 12TH ST. 

P BOX 500 

2530 CRESCENT DR. 



MILWAUKEE, WI 53204 



DALLAS, TX 75222 
PHOENIX, AZ 85036 
NORTH ADAMS, MA 01247 
ERIE, PA 16512 
BEAVERTON, OR 97077 
BROADVIEW, IL 60153 



"fektronix 



COMMITTED TO EXCELLENCE 




CSG PUBLICATIONS/RESEARCH 



RS232 PRINTER INTERFACE for 4051 

Part No. 021-0189-00 




The Tektronix 021-0189-00 Printer interface is a general purpose communications moduie 
that is used by the 4051 Graphic System to output data to any RS232 compatible printing 
device (i.e. the Tektronix 4641 Character Line Printer). The Printer Interface can only be 
used to output data. 

The Tektronix 4051 Graphic System uses the Printer Interface in Conjuction with a Firmware 
Backpack (020-0147-00) or Communications Backpack (021-0188-00). The box portion of the 
Printer Interface is inserted into one of the ROM pack slots found in a backpack. The connector 
end is plugged into the RS232 communications port of the printing equipment. 

For details of operation, refer to the 4051 Option 10 RS232 Printer Interface Manual, part 
number 070-2119-00. 




N) 



.=]* 




O 
CO 



00 
(0 

O 

o 



^ rcVd data 

y data carrier detect 

> data ter.m r.py 

1^ data set p.dy 

_\ signal &nd 

_^ protective &nd 



oai-ois9-oo 



RS S^E PINTER. INTERFACE 



021-0189-00 



Tektronix Serial/Model No. 
Ckt No. Part No. Eff Dscont 



REPLACEABLE PARTS LIST 

Name & Description 



Code Mfr Part Number 





670-4367-00 


CI 


283-0010-00 


C2 


283-0177-00 


C4 


283-0111-00 


C5 


283-0111-00 


Cll 


283-0010-00 


C12 


283-0111-00 


C21 


283-0010-00 


C123 


283-0010-00 


C131 


283-0010-00 


C231 


283-0687-00 


CR12 


152-0141-02 


CR121 


152-0141-02 


Q121 


151-0190-00 


Rll 


315-0102-00 


R121 


315-0472-00 


R122 


315-0392-00 


R123 


315-0223-00 


R124 


315-0472-00 


R131 


315-0221-00 


R132 


321-0372-00 


R141 


311-1238-00 


R231 


321-0316-00 


R232 


321—0312—00 


S31 


260-1777-00 


Ul 


156-0764-00 


Ull 


156-0658-00 


U21 


156-0469-00 


U121 


156-0139-00 


U131 


156-0646-00 


U23I 


156-0402-00 


VR12 


152-0280-00 



CKT BOARD ASSY: LOW COST RS232 ROM PACK 



CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP.,FXD,CER DI:1UF, +80-20%, 25V 
CAP.,FXD,CER DI:0.1UF,20%,50V 
CAP.,FXD,CER DI:0.1UF,20%,50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 

CAP.,FXD,CER DI:0.1UF,20%,50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD,CER DI:0.05UF, +100-20%, 50V 
CAP. ,FXD, MICA D:560PF,2%,300V 

SEMICOND DEVICE :SILICON, 30V, 150MA 
SEMICOND DEVICE :SILICON, 30V, 150MA 

TRANSISTOR: SILICON, NPN 

RES. ,FXD,CMPSN:1K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM, 5% 0.25W 
RES. ,FXD,CMPSN:3.9K OHM,5%,0.25W 
RES. ,FXD,CMPSN:22K OHM,5%,0.25W 
RES. ,FXD,CMPSN:4.7K OHM,5%,0.25W 

RES. ,FXD,CMPSN:220 OHM,5%,0.25W 
RES. ,FXD,FILM:73.2K 0HM,1% ,0 . 125W 
RES. ,VAR,N0NWIR:5K OHM, 10%, 0. 50W 
RES., FXD, FILM: 19. IK OHM,1%,0. 125W 
RES. ,FXD,FILM:17.4K OHM,1%,0125W 

SWITCH, ROTARY: 16 POSN,28VDC,100MA 

MICROCIRCUIT,DI:1024 X 8 ROM 

MICROCIRCUIT,DI:ASYNCHRONUS COMM INTFC ADPTR 
MICROCIRCUIT,DI:3 TO 8-LINE DECODER 
MICROCIRCUIT,LI:DUAL LINE DRIVER 
MICROCIRCUIT,DI: 4-BIT BINARY COUNTER 

MICROCIRCUIT,DI .-TIMER 

SEMICOND DEVICE :ZENER,0.4W, 6.2V, 5% 



80009 670-4367-00 



56289 273C20 

72982 8131N039651105Z 

72982 8131N075651104M 

72982 8131N075651104M 

56289 273C20 

72982 8131N075651104M 

56289 273C20 

56289 273C20 

56289 273C20 

72136 DM15E561G0300 

07910 1N4152 

07910 1N4152 

80009 151-0190-00 

01121 CB1025 

01121 CB4725 

01121 CB3925 

01121 CB2235 

01121 CB4725 

01121 CB2215 

75042 CEAT0-7322F 

73138 72X-27-0.502K 

91637 MFF1816G19101F 

75042 CEAT0-1742F 

00779 53137-1 

04713 MCM68308L 

04713 MC6850L 

01295 SN74LS138N 

01295 SN75150P 

01295 SN74LS93N 

18324 NE555V 

04713 1N753A 



CROSS INDEX-MFR. CODE NUMBER TO MANUFACTURER 



Mfr. Code 



lanufacturer 



Address 



City, State, Zip 



00779 AMP, INC. 

01121 ALLEN- BRADLEY CO. 

01295 TEXAS INSTRUMENTS, INC., 

SEMICONDUCTOR GROUP 
04713 MOTOROLA, INC., SEMICONDUCTOR 

PRODUCTS DIV. 
07910 TELEDYNE SEMICONDUCTOR 
18324 SIGNETICS CORP. 
56289 SPRAGUE ELECTRIC CO. 
71468 ITT CANNON ELECTRIC 
72136 ELECTRO MOTIVE CORP., SUB OF 

INTERNATIONAL ELECTRONICS CORP. 
72982 ERIE TECHNOLOGICAL PRODUCTS, INC. 
73138 BECKMAN INSTRUMENTS, INC., HELIPOT DIV. 
75042 TRW ELECTRONIC COMPONENTS, IRC FIXED 

RESISTORS, PHILADELPHIA DIVISION 
80009 TEKTRONIX, INC. 
83385 CENTRAL SCREW CO. 
91260 CONNER SPRING AND MFG. CO. 



P. 0. BOX 3608 
1201 2ND ST. SOUTH 

P. 0. BOX 5012 

5005 E. MCDOWELL RD. 
12515 CHAD RON AVE. 
811 E. ARQUES 

666 E. DYER RD. 

SOUTH PARK AND JOHN STREETS 
644 W. 12TH ST. 
2500 HARBOR BLVD. 

401 N. BROAD ST. 
P. 0. BOX 500 
2530 CRESCENT DR. 
1729 JUNCTION AVE. 



HARRISBURG, PA 17105 
MILWAUKEE, WI 53204 

DALLAS, TX 75222 

PHOENIX, AZ 85036 
HAWTHORNE, CA 90250 
SUNNYVALE, CA 94086 
NORTH ADAMS, MA 01247 
SANTA ANA, CA 92702 

WILLIMANTIC, CT 06226 
ERIE, PA 16512 
FULLERTON, CA 92634 

PHILADELPHIA, PA 19108 
BEAVERTON, OR 97005 
BROADVIEW, IL 60153 
SAN JOSE, CA 95112 




REPLACEABLE PARTS LIST 



Fig. & 

Index Tektronix 
No. Part No. 



Serial/Model No. 
Etf Dscont 



Qty 12 3 4 5 



Name & Description 



Mfr 
Code 



Mfr Part Number 



-1 334-2826-00 
-2 380-0384-01 



-3 


211-0102-00 


-4 




-5 


136-0578-00 


-6 


200-1042-03 




012-0695-00 


-7 


200-1667-00 


-8 


131-0569-00 


-9 


200-1042-03 


-10 


175-1935-00 


-11 


367-0189-00 


-12 


380-0343-02 



PLATE, IDENT: 

HSG , HALF , RDOUT : LID 

(ATTACHING PARTS) 
SCREW,MACHINE:4-40 x 0.500 INCH, FLH, STL 

CKT BOARD ASSY:RS232 ROM PACK(SEE EPL) 

. SOCKET , PLUG-IN: 24 DIP, LOW PROFILE 

CABLE NIP, ELEC: 0.194 ID, 2.0 1, PLASTIC 

CABLE, INTCON: 120.0 LONG 

. COVER, ELEC CONN: 26 POSN,W/HDW 

. CONNECTOR, RCPT, : 25 PIN, FEMALE 

. CABLE, NIP, ELEC: 0.194 ID, 2.0 L, PLASTIC 

. CABLE, SP, ELEC: 5. 26 AWG, 600V, 120 LONG 

HANDLE, BOW: 

HSG ,HALF , RDOUT : INNER 



80009 
80009 



334-2826-00 
380-0384-01 



83385 OBD 



01295 


C932402 




80009 


200-1042- 


-03 


80009 


012-0695- 


-00 


00779 


5091-100- 


-1 


71468 


DB25S 




80009 


200-1042- 


-03 


80009 


175-1935- 


-00 


91260 


OBD 




80009 


380-0343- 


-02 



062-3079-00 



STANDARD ACCESSORIES 
1 DATA SHEET: 02 1-0189-00 



80009 062-3079-00 



Appendix A 



INDEX OF SIGNAL NAMES 



Interpretation of true and false logic states on the schematic diagrams uses this convention. 
Whenever a signal is followed by a dash one (NAME-1), the voltage is logically high for the 
signal to be true. Whenever a signal is followed by a dash zero (NAME-0), the voltage is 
logically low for the signal to be true. 



ABO thru AB15 



ADDRESS BUS LINES 

These iines comprise the address bus. Data on the address bus 

determines which memory location or peripheral interface is to be 

activated. 



ABA 



ADDRESS BUS AVAILABLE 

This signal is the buffered bus available signal from the 
microprocessor. The true state specifies that the microprocessor is 
not using the add ress bus and that any other device may use the bus 
at this time. Memory refresh activity occurs at times when ABA is 
true. The 4051 system test fixture uses this signal to enable memory 
input/output operations when the microprocessor is halted. 



This signal causes the display of a stored dot in the drawing of a 
printable character on the crt. 



ANODE 



ANODE 

This is a voltage line controlling the flood guns. When the display is 
in view mode, the anode voltage is +1 50 volts dc. When the display is 
in hold mode, the anode voltage alternates between +150 volts and 
zero volts, turning the flood guns on and off, to maintain the display 
of information on the crt. 



ATN 



ATTENTION 

This signal is activated by the 4051 when it is transmitting multiline 
interface messages over the General Purpose Interface Bus (GPIB). 
Only an active controller (4051 assumes it is the only controller) 
asserts ATN. When ATN is true, data on the data lines DI01 thru 
DI08 is interpreted as a talk address, listen address, untalk, unlisten, 



4051 SERVICE VOL. 2 



@ 



A-1 



APPENDIX A 



BIAS 



BIAS 



or any other multiline interface message specified in the IEEE 
Standard 488-1975 (IEEE Standard Digital Interface for 
Programmable Instrumentation. When ATN is false, the assigned 
talker can send device dependent information over the data lines 
DIOI thru DI08. 

BIAS 

This voltage is generated by deflection amplifier circuitry on the 
display board to establish four constant current sources for proper 
display operation. Two of the current sources enable operation of 
the deflection amplifier outputs. The other two enable the 
multiplexing of crt deflection control between the cpu board and an 
optional Hard Copy Unit. 

BIAS 

This voltage is generated in the digital-to-analog circuitry on the cpu 
board to bias the current summing amplifiers of the digital-to- 
analog converters in their active region. 



BREAK 



BREAK 

This signal is used to light the BREAK light. This light being on 
indicates that program execution will halt at the completion of the 
current BASIC program language statement, at which time the 
BREAK light will go out. 



BSCOM 



BANK SWITCH COMMUNICATION 

This signal is generated by the banks switch data decoder to enable 
an 8K bank of read only memory (ROM) that contains code to govern 
RS-232 communication activity. To activate BSCOM, the 
hexadecimal data (10) must be loaded into the bank switch data 
register. LBS is active when the bank switch data register is 
addressed. The bbank switch data register is located in the 
backpack. 



BS(L) 



BANK SWITCH LEFT 

This signal is generated by the bank switch data decoder to enable 
an 8K bank of read only memory (ROM) residing in the left backpack 
slot. The bank switch data register is located in the backpack. 



BS(R) 



BANK SWITCH RIGHT 

This signal is generated by the bank switch data decoder to enable 

an 8K bank of read only memory (ROM) residing in the right 

backpack slot. The bank switch data register is located in the 

backpack. 



A-2 



(5) 



4051 SERVICE VOL, 2 



APPENDIX A 



BSX(L) 



BANK SWITCH EXPANSION LEFT 

This signal is generated by the bank switch data decoder to enable 
an 8K bank of read only memory (ROM) that resides in any of 8 slots 
in an optional ROM Expander Unit. The particular expander slot is 
determined by the 3 least significant bits of data loaded into a bank 
switch reaister. 



BSX(R) 



BANK SWITCH EXPANSION RIGHT 

This signal is generated by the bank switch data decoder to enable 
an 8K bank of read only memory (ROM) that reside in any of 8 slots in 
an optional ROM Expander Unit. The particular expander slot is 
determined by the 3 least significant bits of data loaded into a bank 
switch register. 



BUhCLK 



BUFFER CLOCK 

This signal is used to strobe data into the digital-to-analog converter 
data registers. It restarts a 90 second view mode timer. And, if 
vectors are to be drawn, it initiates a 3.7 millisecond pulse (VPULSE) 
used to time vector draws. 



BUSY 



BUSY 

This signal lights the BUSY light to indicate that the 4051 is busy 
transferring or processing data. BUSY is also driven by a 
programmed square wave to cause an audio tone at the speaker. 



CBACIA 



COMMUNICATION BACKPACK ACIA 

Tklc omnnl ic o linA -frv\m o r> oHHrocc oex/n/^hrnn/Mic r*r>r 
i i no oiy i i«i io a iiii^ iiv/iii um uwiui v^oo ctojr i iui ■■ vi ivww %*\si 

interface adapter is being addressed. 



inif»otir»r» 



CTRL 



CONTROL 

This signal is generated by pressing the CONTROL or CTRL key on 

the keyboard. 



COPY 



COPY 

This signal is generated by programming to initiate hard copy 
activity. It is also asserted when the MAKE COPY key on the 
keyboard is pressed. 



COPY EN 



COPY ENABLE 

This signal is generated by the OR of READ and WAIT signals from 
an optional Hard Copy Unit enabling the Hard Copy Unit to control 
circuitry on the display board. When the COPYEN signal is true, the 
Hard Copy Unit is either producing a hard copy or waiting to 
produce a hard copy of information on the crt. 



4051 SERVICE VOL. 2 



@ 



A-3 



APPENDIX A 



COPYEN is driven false whenever the internal magnetic tape drive is 
in motion, preventing the Hard Copy Unit from simultaneously 
controlling the display circuitry. Since both the crt display and tape 
drives are large consumers of energy, and that there is limited power 
from the power supply, a requirement exists that the display 
deflection amplifiers and tape motors cannot be simultaneously 
active. 

CS CHIP SELECT 

This signal is generated by the MCP2 clock to select random access 
memory (RAM) circuits for read and write operations only when 
MCP2 is true. When MCP2 is false, memory refresh operations may 
occur. CS is the inverse of MCP2. 

CTS CLEAR TO SEND 

When the 4051 acts as a data set, the signal transmitted at pin 5 of the 
RS-232 interface on the Communication Backpack enables a 
computer terminal to send data to the 4051. 

When the 4051 acts as a data terminal, CTS becomes Request To 
Send on pin 4 of the RS-232 communication cable. It then notifies 
data communication equipment that the 4051 wishes to transmit 
data. 

DAV DATA VALID 

The true state of this signal specified that data on the general 
purpose interface bus (GPIB) data lines (DIOI thru DI08) is valid. 
The 4051 places a true signal on DAV whenever data or remote 
interface messages are placed on the data lines by the 4051. DAV 
should remain asserted until NDAC goes false. 

The 4051 cannot issue DAV if NRFD is true. A true on NRFD does not 
remove an already valid DAV signal. 

The 4051 cannot issue DAV if it is a listener on the GPIB. 

DB0 thru DB7 DATA BUS 

These are the bi-directional data bus lines between the 
microprocessor and all memory and interface devices in the 4051. 

DBE DATA BUS ENABLE 

This signal is an input to the microprocessor to enable the 
microprocessor to output information on the data bus. DBE is 
actually the phase two microprocessor clock MCP2. When high, the 
microprocessor can write data to the data bus, when low, memory 
refresh activity and other data functions can make use of the data 
bus. 

A-4 @ 4051 SERVICE VOL. 2 



APPENDIX A 



DCD 



DATA CARRIER DETECT 

When the 4051 acts as a data set, the signal transmitted at pin 8 of the 
RS-232 interface on the Communication Backpack enables a 
remote terminal to send and receive data on the interface. 

When the 4051 acts as a data terminal, DCD becomes Data Terminal 
Ready on pin 20 of the RS=232 communication cable. It tells data 
communication equipment that the 4051 is ready to send or receive 
data over the RS-232 interface. 



DELAY IN 



DELAY INPUT 

This is a general purpose trigger signal derived from the selected 
operation trigger (SOT) signal. DELAY OUT is triggered by DELAY 
IN going high. DELAY OUT remains high for 40 microseconds after 
being triggered by DELAY IN. 



DELAY OUT 



DELAY OUTPUT 

This signal is a general purpose timing pulse of 40 microseconds in 
duration generated by a one shot on the tape drive board. DELAY 
OUT is triggered by the DELAY iN signai from the cpu board. 



DI01 thru DI08 



DATA IN AND OUT BUS 

These are the bi-directional data lines found on the general purpose 

interface bus (GPIB). 



DRBUSY 



DIRECT READOUT BUSY 

This signal goes true any time the display is busy (during an erase 
cycle or creating a hard copy) . DRBUSY notifies the microprocessor 
that the cpu is involved in a time-consuming task. It also ensures that 
the flood guns are active when performing a page erase function or a 
hard copy operation. 



DRTAPE 



DRIVE TAPE 

This signal is generated by the microprocessor through a peripheral 
interface adapter to turn the tape unit motor on and off. When true, 
the tape motor is turned on; when false, the tape motor is turned off. 



DSR 



When the 4051 acts as a data set, the DSR signal transmitted on pin 6 
of the RS-232 connector on the Communication Backpack tells the 
terminal that the 4051 is powered up and ready to operate. 

When the 4051 acts as a data terminal, the passive high has no affect 
on the DSR signal transmitted by the data communication 
equipment. DSR is ignored. 



4051 SERVICE VOL. 2 



@ 



A-5 



APPENDIX A 



DTR 



DATA TERMINAL READY 

When the 4051 acts as a data set, the signal received on pin 20 of the 
RS-232 connector of the Communication Backpack tells the 4051 
that a data terminal is powered up and ready for operation. 

When the 4051 acts as a data terminal, DTR becomes Data Carrier 
Detect on pin 8 of the RS-232 communication cable. It then notifies 
the 4051 that a data set is powered up and that a communication link 
has been established. 



DYNAMIC FOCUS 



DYNAMIC FOCUS 

This analog voltage is generated by the deflection amplifiers on the 
display board to provide correction to compensate for the physical 
characteristics of the crt. The correction voltage is proportional to (X 
deflection) 2 + (Y deflection) 2 . 



EMIOthru EMI7 



EXPANDED MEMORY INPUTS 

These signal lines are an extension of the bi-directional data bus 
used to provide data to be written into random access memory 
(RAM) devices on the expanded memory board within the 4051. 



EMO0 thru EM07 



EXPANDED MEMORY OUTPUTS 

These signal lines are the output data bus from the random access 
memory (RAM) devices. During RAM read operations, data on the 
expanded memory output lines is strobed onto the 4051's bi- 
directional data bus. 



EOI 



END OR IDENTIFY 

This signal is sent true by an assigned talker on the general purpose 
interface bus (GPIB) to signal the end of data. Since parallel poll 
operations are not implemented in the 4051 , the identify function of 
EOI is not implemented. During normal bus operation, EOI 
accompanies the last data byte to be transmitted. 



EPIAS 



EXTERNAL PERIPHERAL INTERFACE ADAPTER SELECT 
This signal is generated by the read only memory (ROM) page 
decoder and goes true whenever data on the address bus specifies 
that a valid external peripheral address may be present. External 
peripheral interface adapters (PIAs) are optional interfaces in ROM 
Pack cartridges that are inserted into backpack slots. 



ERASE 



ERASE 

This signal is generated on the cpu board to initiate an erase cycle 

on the display board. 



A-6 



4051 SERVICE VOL. 2 



APPENDIX A 



FAST 



FAST 

This signal is generated on the cpu board to determine the operating 
speed of the tape d rive motor. When FAST is true, a tape speed of 90 
inches per second is enabled. When FAST is false, the normal 
read/write tape speed of 30 inches per second is enabled. 



FICG 



FIND INTERCHARACTER GAP 

This signal enables the intercharacter gap (ICG) detecting circuitry 
during magnetic tape read operations. A true state enables the 
detection of file marks and record marks when the tape is operating 
at normal speed. 



FILFND 



FILE FOUND 

This signal is interrogated to indicate the presence of an interfile gap 
when the tape is operating in a fast search mode of 90 inches per 
second. FSENABLE is the signal that enables a timing one-shot that 
generates FILFND. 



F.G. HEATER 



FLOOD GUN HEATER VOLTAGE 

volts above the -20 volt unregulated supply. It is used to heat the 
filaments in the crt flood guns. 



FMARK 



FILE MARK 

This signal is generated by the intercharacter gap (ICG) counter 
when reading the tape and a file mark has been encountered. A file 
mark consists of 8 consecutive intercharacter gaps separated by 
flux reversals on track — one reversal between each ICG. 



FSENABLE 



FAST SEARCH ENABLE 

This signal, when true, enables the detection of an interfile gap when 

the tape is operating in a fast search mode of 90 inches per second. 



GICG 



GENERATE INTERCHARACTER GAP 

This signal enables the selected operation trigger (SOT) to become 
the magnetic tape write clock (WCLK) when generating 
intercharacter gaps. GICG also forces a data write to track zero by 
holding WDATA false. 



GND 



GROUND 

This is the electrical common or zero potential (chassis voltage) in 

the 4051. 



4051 SERVICE VOL. 2 



@ 



A-7 



APPENDIX A 



HALT 



HALT 

This signal is generated by the 4051 system test fixture to stop the 
operation of the microprocessor. When the microprocessor is 
stopped, VMA is false, BA is true, and the three-state signals, R/W, 
address lines and data lines are at a high impedance state. HALT is 
also used by the 4051 system test fixture to single-step through 
microprocessor instructions. 



IFC 



INTERFACE CLEAR 

This general purpose interface bus (GPIB) signal is asserted by the 
4051 to force all devices on the bus to a predetermined quiescent 
state. The INIT statement in the 4051 BASIC language will cause the 
IFC line to become active. The 4051, being the only controller and 
therefore the system controller, is the only source for this signal. 



INTER 



INTERROGATE 

This signal is produced by an optional Hard Copy Unit to strobe the 
crt writing beam (Z axis) while generating a copy of the displayed 
image. Each time the strobed writing beam lands on a written 
portion of the crt image, a target signal (TARSIG) is generated and 
transmitted back to the Hard Copy Unit. 



I/O 



INPUT/OUTPUT INDICATOR 

This signal is used to turn on the I/O signal light anytime a device 

input/output operation (data transfer) is performed. 



IPIAS 



INTERNAL PERIPHERAL INTERFACE ADAPTER SELECT 
This signal is generated by the read only memory (ROM) page 
decoder and goes true whenever data on the address bus specifies 
that a valid internal peripheral address may be present. Internal 
peripheral interface adapters (PIAs) are located on the cpu board. 



IRQ 



INTERRUPT REQUEST 

This line is a maskable interrupt request line to the microprocessor. 



KBCLK 



KEYBOARD CLOCK 

This signal increments a data decoding counter used to interrogate 
and decode the particular alphanumeric key being pressed. The 
clock is generated as an output from the random access memory 
(RAM) refresh counter. 



KBCOPY 



KEYBOARD COPY 

This signal is used only by the 4006-1 Display Terminal to initiate a 

hard copy request. 



A-8 



4051 SERVICE VOL. 2 



APPENDIX A 



KBHALT 



KEYBOARD HALT 

This is a signal generated by the keyboard interface to stop the 
keyboard decoding counter until its contents can be read. The count 
is placed on the key code lines (KCO through KC6) to specify which 
key has been pressed. After the microprocessor has read the key 
code, the KBHALT line again goes false. 



KCO thru KC6 



KEY CODE LINES 

Data found on these lines specifies which keyboard key has been 
pressed. Data on these lines becomes stable when the 
microprocessor issues a KBHALT command to the keyboard. Data 
on KCO thru KC6 is converted into ASCII format by the 
microprocessor for BASIC data processing. 



KEY 



KEY DOWN 

This signal goes true whenever a key on the keyboard is pressed. 



LAMP ON 



LAMP ON 

This signal is used to turn on the tape sensing lamp when the tape 
cartridge is inserted into the instrument. Illumination from the lamp 
is used to activate phototransistors that generate UPHOLE and 
LOHOLE signals. 



LAMP ON RETURN 



LAMP ON RETURN 

This signal is used by logic to sense that a cartridge tape unit has 
been inserted into the 4051 . The tape drive motor is disabled unless 
the sensing lamp is on and a tape cartridge is inserted into the sstem. 



LBS 



LOAD BANK SWITCH 

This signal is generated whenever the bank switch memory location 
is addressed. Data written into the bank switch register indicates 
which 8K ROM bank is selected to use the shared ROM address 
space. The data also determines which of several possible external 
interfaces may be activated. 



LDCLK 



LOAD CLOCK 

This signal is activated whenever the 4051 wishes to perform tape 
input/output operations and the LOAD line is false. A false on the 
LOAD line indicates that there is no tape in true only if a tape 
cartridge has been loaded into the 4051 . The LOAD line will remain 
true until the tape cartridge is removed. 



4051 SERVICE VOL. 2 



A-9 



APPENDIX A 



LOAD 



LOAD 

This signal is used by the microprocessor through the keyboard PIA 
to determine if a tape cartridge is loaded and available to perform 
input/output operations. 



LOADED 



LOADED 

This signal is generated by a microswitch in the 4051 to indicate that 

a tape cartridge is currently in the system. 



LOHOLE 



LOWER HOLE INDICATOR 

This signal is generated by a phototransistor as light shines through 
the lower magnetic tape hole, right side of tape. LOHOLE is used to 
decode beginning of tape (BOT) and end of tape (EOT). 



MABOthru MAB11 



MULTIPLEXED ADDRESS BUS 

These signal lines are outputs from the random access memory 
(RAM) refresh multiplexer. When MCP2 is false, a memory refresh 
address is on the MAB address lines. When MCP2 is true, memory 
data address from the microprocessor (or 4051 system test fixture) 
is on the MAB address lines. The MAB address lines are used to 
address the contents of random access memory (RAM) devices and 
also to provide RAM refresh addressing. 



MAKE COPY 



MAKE COPY 

This signal is generated on the display board and is sent to an 

optional Hard Copy Unit whenever a copy is to be made. 



MCP1 



MASTER CLOCK PHASE 1 

This is the phase 1 clock for the microprocessor. It is generated as a 

fixed number of pulses from a crystal oscillator. 



MCP2 



MASTER CLOCK PHASE 2 

This is the phase 2 clock for the microprocessor. It is also used for 
peripheral timing and memory timing operations. MCP2 is 
generated as a fixed number of pulses from a crystal oscillator. 



MDATA 



MORE DATA 

This signal is generated by the tape cartridge clocking circuitry to 
request more data to be written to the tape. It is also used to enable 
the load and shift operations of a parallel-in serial-out shift register. 



MTCLK 



MAGNETIC TAPE CLOCK 

This signal is generated by a counter in the master timing circuits. 
MTCLK is used to drive the clock control circuitry that writes data to 
the magnetic tape cartridge. 



A-10 



@ 



4051 SERVICE VOL. 2 



APPENDIX A 



NDAC 



NOT DATA ACCEPTED 

This is a handshake contro! line on the general purpose interface 
bus (GPIB). Its true state indicates that data is not accepted. Listener 
devices cause this line to go false to signal an acceptance of data in 
response to DAV. 



NMI 



NON-MASKABLE INTERRUPT 

This is a high priority interrupt used by the cartridge tape control 
logic to request service of the microprocessor. This interrupt cannot 
be disabled within the microprocessor. 



NOBURN CLK 



NO BURN CLOCK 

This is a 1 2.5% duty cycle clock signal used to reduce writing beam 
energy when the 4051 draws short vectors. This prevents phosphor 
burns resulting from concentrated writing energy. The NOBURN 
CLK signal is generated by the system timing circuits. 



NODRIVE 



NO TAPE DRIVE 

This signal is the inverse of DRTAPE to indicate that the magnetic 
tape motor is not being driven. It is used to disable the writing 
circuits when the tape is not moving. 



NRFD 



NOT READY FOR DATA 

This is a handshake signal used by the general purpose interface 
bus (GPIB) to indicate that a listener is not ready for data. The false 
state indicates that a listener is ready to receive more data. 



OFA 



OVERFLOW A 

This signal is generated in the Firmware Backpack whenever the 

first overflow read only memory device is addressed. 



OFB 



OVERFLOW B 

This signal is generated in the Firmware Backpack whenever the 

second overflow read only memory device is addressed. 



ORIGIN 



ORIGIN SHIFT CLOCK 

This signal line is pulsed each time the page (or crt display) is 
erased. ORIGIN clocks a counter that determines the zero address 
offset for a new page of displayed information, 



PIAE 



PERIPHERAL INTERFACE ADAPTER ENABLE 

This signal is true when both VMA from the microprocessor and 

MCP2 from the master clock circuits are true. PIAE is used as a 

timing or enable pulse for peripheral interfaces such as PIAs and 

ACIAs. 



4051 SERVICE VOL. 2 



A-11 



APPENDIX A 



PIAS 



PERIPHERAL INTERFACE ADAPTER SELECT 
This signal goes true whenever the address on the address bus lies 
within the peripheral interface address space. This decoded address 
signal is used to generate IPIAS and EPIAS. 



RAMP 



RAMP 

The voltage on this analog signal line determines the speed of the 
tape motor and therefore the cartridge tape velocity. The RAMP 
voltage is determined by an integrator circuit on the motor drive 
board. Tape velocity is approximately 1 inches per second for each 
volt of RAMP voltage. 



RAMSO thru RAMS7 



RANDOM ACCESS MEMORY SELECT 

Each of the RAMS lines is generated by an address decoder. Each 
line enables 4K bytes of random access memory composed of eight 
4K RAM chips. RAM blocks and 1 are on the cpu board. RAM 
blocks 2 thru 7 are on the expanded memory board. 



RAMW 



RANDOM ACCESS MEMORY WRITE 

This signal causes a write operation to be performed on random 
access memory (RAM) devices within the 4051. It goes true 
whenever a write operation is commanded on R/W from the 
microprocessor and MCP2 is true. It also goes true if the 4051 
system test fixture issues a write command, RWOC, during MCP2. 



RBC 



ROM BANK CONTROL 

This signal is generated by the bank switch data decoder in a 
backpack to disable the 8K ROM bank on the cpu board whenever 
another ROM bank that shares the same address space is selected. 



RCCLK 



RANDOM ACCESS MEMORY COUNTER CLOCK 
This signal is generated by the master clock circuitry to periodically 
advance the random access memory refresh address counter. The 
counter cycles the refresh addresses associated with address lines 
MABO thru MAB5. 



RCEO thru RCE7 



RAM CHIP ENABLE 

Each RCE line goes to chip enable inputs of a 4K block of RAM and is 
activated at the appropriate time for input/output operations and 
memory refresh operations. During RAM input/output operations, 
only one of the eight RCE lines is active. During memory refresh, 
REFCLKO activates RCEO and RCE1 , REFCLK1 activates RCE2 thru 
RCE4, and REFCLK2 activates RCE5 thru RCE7. 



A-12 



@ 



4051 SERVICE VOL. 2 



APPENDIX A 



RCLK 



READ CLOCK 

This signal is generated by data being read from the internal 
magnetic tape. RCLK is used to clock the serial tape data into the 
serial-to-parallel shift register. It is also interrogated by one shots to 
decode the various tape formatting patterns (i.e., intercharacter 
gaps, record marks, file marks and interfile gaps). 



MRDATA 



RDATA 



MAGNETIC READ DATA 

This signal is serial data recovered from the tape during a read 
operation. On the cpu board it is converted to 8-bit parallel data for 
use by the microprocessor. 

RECEIVE DATA 

When the 4051 acts as a data set, the signal transmitted at pin 3 of the 
RS-232 connector on the Communication Backpack is data to be 
received by a data terminal. 

When the 4051 acts as a data terminal, RDATA becomes Transmit 
Data on pin 2 of the RS-232 communication cable. This data is sent 
to data communication equipment. 



RDBYTE 



READ BYTE 

This signal goes true during a magnetic tape read operation when 8 
bits of data have been loaded into the read data register, a serial-in 
parallel-out shift register. RDBYTE informs the microprocessor to 
read the data currently in the read data register. 



RDE 



RAM DECODE ENABLE 

This signal is generated by the master timing circuitry to enable the 
decoding of a random access memory (RAM) address during a 
specified time period (the last 480 nanoseconds of MCP2). 



READ 



READ 

This signal is generated by an optional Hard Copy Unit and goes 
true whenever the Hard Copy Unit is making a copy of the image on 
the crt. 



REFCLKO 
REFCLK1 
REFCLK2 



REFRESH CLOCK SIGNALS 

These clock signals are generated by the master clock circuits 

to time the refresh activity for random access memory (RAM) 

devices. Each clock signal initiates refresh activity for a bank of 

RAMs. 



4051 SERVICE VOL. 2 



A-13 



APPENDIX A 



REN 



REMOTE ENABLE 

The 4051 places this signal on the general purpose interface bus 
(GPIB) whenever the BUSY light is lit. This signal places all devices 
on the GPIB under control of the 4051, causing these devices to 
ignore their front panel controls. 



RES 



RESET 

This signal is a buffered data line from the RESTART signal. This 

signal resets all interface devices and restarts the microprocessor 

programming. 



RESTART 



RESTART 

This signal is generated by the +5 volt power supply during 4051 
power-up operations. It can also be generated by the 4051 system 
test fixture. 



REV 



REVERSE 

This signal controls the direction of tape drive operation. When true, 

the tape travels in the backward direction when the tape unit is 

ordered into motion. When false, the tape travels in the forward 

direction. 



RMARK 



RECORD MARK 

This signal interprets the pulses from the intercharacter gap counter 
to determine when a record mark on tape has been read. A record 
mark is four successive intercharacter gaps separated only by flux 
reversals on track 0. There is one flux reversal between each 
intercharacter gap. 



ROMDIS 



READ ONLY MEMORY DISABLE 

This signal is generated by the 4051 system test fixture to disable the 
ROME15 signal. When ROMDIS is true, the address space 
associated with ROME15 is used by memory devices within the 4051 
system test fixture. 



RTS 



REQUEST TO SEND 

The 4051 cannot act as a half-duplex data set. RTS is a half-duplex 
control signal received on pin 4 of the RS-232 connector on the 
Communication Backpack. 

When the 4051 acts as a half-duplex data terminal, RTS becomes 
Clear To Send on pin 5 of the RS-232 communication cable. CTS is 
transmitted as Request To Send whenever the 4051 needs to 
transmit data. RTS is received as Clear To Send whenever it is ok for 
the 4051 to transmit data. This is half-duplex normal operation. 



A-14 



4051 SERVICE VOL. 2 



APPENDIX A 



R/W 



READ/WRITE 

This signal is generated by the microprocessor to control direction 

of data flow on the data bus. When R/W is true, the microprocessor 

reads data that has been placed on the data bus by peripheral 

interfaces or memory. When R/W is false, the microprocessor places 

data on the data bus to be written into memory or a peripheral 

interface. 



RWIC1 and RWIC2 



READ-WRITE INPUT COMMAND 

These signals are contained entirely within an integrated circuit 
chip. They are used to place random access memory (RAM) output 
data onto the data bus whenever a RAM read operation is performed. 



RWOC 



READ-WRITE OUTPUT COMMAND 

This signal is the buffered R/W line from the microprocessor. It is 

used by all devices that are inserted into the backpack slots. 

The 4051 system text fixture also activates this line when the 
microprocessor is halted to examine or deposit data in memory 
locations within the 4051. 



SAO thru SA7 



SELECTED DATA BUS A 

This data bus is used to receive data from the magnetic tape. The bus 

consists of the PA data lines on the Y axis D/A peripheral interface 

adapter. 



SAFE 



SAFE 

This signal is generated by the magnetic tape microswitch that 

indicates whether the tape cartridge is write protected. The true 

state of the SAFE signal prevents data from being written to the tape 

cartridge. 



SAFE SW 



SAFE SWITCH 

This switch is open when a tape cartridge is write-protected. This 
switch is closed to attach the +15 Vi supply voltage to the tape 
writing circuits. 



SBO thru SB7 



SELECTED DATA BUS B 

This data bus is used to send data bytes to the magnetic tape. The 
bus consists of the PB data lines on the Y axis D/A peripheral 
interface adapter. 



SHIFT 



SHIFT 

This signal is generated by the keyboard whenever the SHIFT key is 

pressed. 



4051 SERVICE VOL. 2 



A-15 



APPENDIX A 



SOT 



SELECTED OPERATION TRIGGER 

This signal is generated by a peripheral interface adapter to 

implement several timing functions. 

1. SOT triggers a refreshed dot during the display of a cursor or 
refreshed character on the crt. 

2. SOT becomes the WCLK signal whenever an intercharacter gap 
(GICG) is to be written to the magnetic tape. 

3. SOT triggers a 40 microsecond timer on the tape drive board by 
activating the DELAY IN signal. After initiating SOT, the 
microprocessor can monitor DELAY OUT to determine when 40 
microseconds has elapsed. The 40 microsecond timer is used to 
control functions such as generating intercharacter gaps on 
magnetic tape, line turn-around timing in half-duplex 
communications and status response timing in 4012 Display 
Terminal emulation. 



SPEAKER 



SPEAKER 

This is a filtered return line for the BUSY signal as it passes through a 

speaker for generating an audio tone. 



SRQ 



SRX 



SERVICE REQUEST 

This is a control line that is activated by a peripheral device on the 
general purpose interface bus (GPIB) to request service from the 
microprocessor (system controller). The 4051 responds to SRQ by 
performing a serial poll of devices on the GPIB. 

SECONDARY RECEIVED LINE SIGNAL DETECTOR 

This signal is found on pin 12 of the RS-232 connector on the 
Communication Backpack. It is also on pin 12 of the RS-232 
communication cable. When the 4051 acts as a half-duplex data 
terminal using supervisor communications, the signal received on 
SRX indicates that the computer or data set is listening for data. 
When SRX goes false, the computer or data set wishes to send data 
to the 4051. 



STXA 
STXC 



SECONDARY REQUEST TO SEND (RS-232-A) 
SECONDARY REQUEST TO SEND (RS-232-C) 
STXA is transmitted by the 4051 on pin 1 1 of the RS-232 connector 
on the Communication Backpack or the end of the communication 
cable. STXC is transmitted by the 4051 on pin 19 of the RS-232 
connector on the Communication Backpack or the end of the 



A-16 



@ 



4051 SERVICE VOL. 2 



APPENDIX A 



communication cable. When the 4051 acts as a half-duplex data 
terminal using supervisory communications, the signal transmitted 
on STXA or STXC is true whenever the 4051 is iisteneing for data. 
STXA or STXC is false whenever the 4051 wishes to transmit data. 
When STXA or STXC is false, the 4051 must wait for SRX to become 
true before transmitting data. This is half-duplex supervisory 
communications. 



TALK 



TALK 

This signal goes true whenever the 4051 wishes to transmit data over 
the general purpose interface bus (GPIB). TALK goes false 
whenever the 4051 listens to data on the GPIB. TALK provides an 
enable signal for line buffers on the data lines (DIOI thru DI08) and 
handshake iines (DAV, NRFD and NDAX). 



TARSIG 



TARGET SIGNAL 

This signal is generated by the crt readout amplifier when a hard 
copy is being created by an optional Hard Copy Unit. During hard 
copy operation, the crt writing beam is being strobed. Whenever the 
writing beam lands on a stored (written) portion oof the display, 
TARSiG momentariiy goes true and is used by the Hard Copy Unit to 
indicate the presence of displayed information at any given location. 



TDATA 



TRANSMIT DATA 

When the 4051 acts as a data set, the signal received on pin 2 of the 
RS-232 connector on the Communication Backpack is serial data 
transmitted from a computer terminal to the 4051. 

When the 4051 acts as a data terminal, TDATA becomes Receive 
Data on pin 3 of the RS-232 connector on the RS-232 
communication cable. It is used to receive data from a computer or 
data communication equipment. 



TNIM 



TAPE NOT IN MOTION 

This signal is generated by the magnetic tape motor drive ci rcuits to 

indicate that the tape has stopped. 



TTY 



TELETYPE LOCK 

This signal is generated by the TTY LOCK key on the keyboard. 

When the TTY LOCK key is down TTY is true and an abbreviated 

ASCII character set is selected. TTY being false indicates that the 

TTY LOCK key is up and the full printable ASCII character set is 

enabled. Decoding of ASCII characters is performed by the 

microprocessor. 



4051 SERVICE VOL. 2 



A-17 



APPENDIX A 



TUTS 



TAPE UP TO SPEED 

This signal is generated by the motor drive circuitry to indicate that 

the tape motor is up to operating speed of 30 or 90 inches per 

second. 



UPHOLE 



UPPER HOLE 

This signal is generated by a phototransistor as light shines through 
the upper magnetic tape hole, left side of tape. UPHOLE is used to 
decode beginning of tape (BOT), the tape load point and the early 
warning hole near the end of tape. 



VECTOR 



VECTOR 

This signal is generated by data from a peripheral interface adapter 
to enable vector generation. When true, VECTOR activates the 
filters on the digital-to-analog converter outputs. VECTOR also 
enables the VPULSE one shot. 



VEN 



VECTOR ENABLE 

This signal is generated by data from a peripheral interface adapter 
to enable the drawing of a vector on the crt. VEN disables the 
alphanumeric timing one shots and enables the writing beam (Z 
axis) to turn on during vector generation. 



VIEW 



VIEW 

This signal is generated on the cpu board to control the crt flood gun 
anode voltage. When VIEW is true, the flood gun anode is at +150 
volts. When false, the flood gun anode is at zero volts. When the cpu 
board asserts view mode operation, VIEW is true. When the cpu 
board asserts hold mode operation, VI EW is activated by a low duty- 
cycle square wave. 



VIEWCAUSE 



VIEW CAUSE SIGNAL 

This signal is generated by a 100 second view timer on the cpu 
board. VI EWCAUSE is triggered each time the shift key is pressed or 
each time data is loaded into the digital-to-analog converter circuits. 



VMA 



VALID MEMORY ADDRESS 

This signal is generated by the microprocessor when a memory 

address is placed on the address bus. 



VPULSE 



VECTOR PULSE 

This is a 3.7 millisecond pulse that provides the vector drawing time 
signal. The signal goes true whenever a vector is being generated 
regardless if it is displayed or not. 



A-18 



4051 SERVICE VOL. 2 



APPENDIX A 



WAIT 



WAIT 

This signal is generated by Hard Copy Units that have a multiplexer 
option. The signal goes true whenever a Hard Copy Unit is currently 
making a copy from another crt display when the 4051 initiates a 
copy request. The WAIT signal is used to hold display modification 
activity until a hard copy has been made of the crt in the 4051. 



WCLK 



WRITE CLOCK 

This signal is generated by the magnetic tape write control circuitry 
driven by MTCLK on the cpu board. WCLK is used to clock data onto 
the magnetic tape within the 4051. 



WDATA 



WRITE DATA 

This is serial data to be written to the internal magnetic tape. This 

data is unpacked from a parallel-in serial-out shift register on the 

cpu board and is strobed onto the magnetic tape by the write clock, 

WCLK. 



WENABLE 



WRITE ENABLE 

This signal is generated as data from a peripheral interface adapter 
to enable magnetic tape writing activity. WENABLE determines 
whether the write clock signal (WCLK) can be generated and 
whether data can be loaded into the write data shift register. 



WR 



WRITE 

This signal is generated as data from a peripheral interface adapter 
to select the read/write circuits on the tape drive board. When WR is 
true, data may be written or stored onto a tape cartridge. When WR is 
false, data may be read from a tape cartridge. 



X AXIS ANALOG SIGNAL 

This signal is the X axis deflection voltage from the fiiter whose input 
is X D/A. If vectors are to be drawn, then X D/A is passed through an 
active RC filter network before becoming X. X voltage range is 
approximately +8 volts at the left of the screen and -8 volts at the 
right of the screen. 



X AMP 



X AXIS AMPLITUDE 

This signal is generated by the display multiplexer circuits on the 

display board. Inputs to the circuitry are X HC RAMP IN from a Hard 

Copy Unit and X from the cpu board. X AMP is used to drive the 

deflection amplifiers and the correction circuitry for geometry and 

focus. 



4051 SERVICE VOL. 2 



A-19 



APPENDIX A 



X CHAR D/A 



X CHARACTER DIGITAL TO ANALOG 

Character positioning is determined by a primary digital-to-analog 
converter while column selection within a character is determined 
by X CHAR D/A. 



X D/A 



X DIGITAL TO ANALOG 

This signal is the output from the X axis digital-to-analog converter 
amplifier. X D/A is selectively filtered to determine writing beam 
deflection and is used directly as a voltage comparison with a 
Joystick output voltage. 



XERR 



X AXIS JOYSTICK ERROR 

This signal is generated by a comparison amplifier using X D/A and 

X JOY as input voltages. The state of XERR is examined by the 

microprocessor to determine the location referenced by the 

Joystick. 



X HC RAMP IN 



X AXIS HARD COPY RAMP INPUT 

This signal is generated by an optional Hard Copy Unit to drive the X 
axis writing beam deflection while creating a hard copy of the image 
displayed on the crt. 



X JOY 



X JOYSTICK VOLTAGE 

This signal line has a position reference voltage generated by an 

optional Joystick that can be used for graphic input applications. 



XPC2 thru XPC4 



EXTERNAL PERIPHERAL CONTROL LINES 
Each line is a decoded address of a possible external peripheral 
interface adapter (PIA). These lines can be used to address special 
interfaces placed into backpack slots or ROM Expander Unit slots. 
In order for an interface in a backpack slot to be activated, its slot 
should be previously selected by bank switch circuitry. 



Y AMP 



Y AXIS ANALOG SIGNAL 

This signal is the Y axis deflection voltage from the filter whose input 
is Y D/A. If characters are drawn, the filter is disabled and Y becomes 

Y D/A. If vectors are to be drawn, then Y D/A is passed through an 
active RC filter network before becoming Y. Y voltage range is 
approximately +8 volts at the top of the screen and -8 volts at the 
bottom of the screen. 

Y AXIS AMPLITUDE 

This signal is generated by the display multiplexer circuits on the 
display board. Inputs to the circuitry are Y HC RAMP IN from a Hard 
Copy Unit and Y from the cpu board. Y AMP is used to drive the 
deflection amplifier and correction circuitry for geometry and focus. 



A-20 



@ 



4051 SERVICE VOL. 2 



APPENDIX A 



Y CHAR D/A 



Y CHARACTER DIGITAL TO ANALOG 

Character positioning is determined by a primary digital-to-analog 
converter while row selection within a character is determined by Y 
CHAR D/A. 



Y D/A 



Y DIGITAL TO ANALOG 

This signai is the output from the Y axis digitai-to-analog converter 
amplifier. Y D/A is selectively filtered to determine writing beam 
deflection and is used directly as a voltage comparison with a 
Joystick output voltage. 



YERR 



Y AXIS JOYSTICK ERROR 

This signal is generated by a comparison amplifier using Y D/A and 

Y JOY as input voltages. The state of YERR is examined by the 
microprocessor to determine the location referenced by the 
Joystick. 



Y HC RAMP IN 



Y HARD COPY RAMP INPUT 

This signal is generated by an optional Hard Copy Unit to drive the Y 
axis writing beam deflection while creating a hard copy of the image 
displayed on the crt. 



Y JOY 



Y JOYSTICK VOLTAGE 

This signal line has a position reference voltage generated by an 

optional Joystick that can be used for graphic input applications. 



Z AXIS SIGNAL 

This signal is generated by the cpu board to control the state of the 
writing beam. Z becomes Z MPX on the display board if a hard copy 
is not being made. IfZis true, the writing beam ofthecrtwill turn on. 
If false, the writing beam will remain off. 



ZMPX 



Z AXIS MULTIPLEXED SIGNAL 

This signal is generated on the display board to drive the writing 

beam circuits (Z axis amplifier). When a hard copy is to be 

generated, Z MPX is triggered by INTER. Otherwise, Z MPX is equal 

toZ 



Z VECT 



Z VECTOR DRAW 

This signal is generated by vector generation circuitry on the cpu 
board to turn on the writing beam for the duration of a vector draw. 
The Z signal is controlled by Z VECT as well as outputs of character 
dot one shots. 



4051 SERVICE VOL. 2 



@ 



A-21 




TEKTRONIX® 



committed to 

technical excellence 



CHANGE: 



MANUAL CHANGEINFORMATION 



PRODUCT 4051 SERVICE 
VOLUMN II 070-2286-00 



CHANGE REFERENCE Cl/677 
DATE 6— 2—77 



DESCRIPTION 



EFF SN B082623 



SCHEMATIC AND BOARD PHOTOGRAPH CORRECTIONS 



k h.t-' j ,At ;h, ; ±ne existing Qi3.2r3.ni jjririjJn»»ixuiN ijj,Kw<uj,4,ivx •+- _/ w_i_un 

the following 4-5. 

DIAGRAM 4-6 
CHANGE TO: 

Q1036 should be labeled Q1038 

Q1039 should be labeled Q1048 



REPLACE: Display board 670-4087-06 on the apron of 4-5 with the 
following Dis^la" board 672-0546-05. 



PAGE 1 OF 3 



PRODUCT 



4051 SERVICE VOL II CHA NGE REFERENCE C1 / 677 



DATE. 



6-3-77 



CHANGE: 



DESCRIPTION 




672-0546- 



PAGE 2 OF 3 




TEKTRONIX® 



committed to 

technical excellence 



CHANGE: 



MANUAL CHANGE INFORMATION 



PRODUCT 



4051 Service 
070-2286-00 



CHANGE REFERENCE M31106 
DATE 6-2-77 



DESCRIPTION 



EFF SN B082820 

ELECTRICAL PARTS LIST AND SCHEMATIC CHANGES 

CHANGE TO: 

A4 672-0546-06 CKT BOARD ASSY:DISPLAY 

R212 307-0314-01 RES . ,FXD, FILM: VOLTAGE DIVIDER 



PAGE 



OF 



Y RAMP R£T 



R"7S1 
IK 

Y HC RAMP !M ■ 'VW- 



Y GNDL 

J55-2J 
X 6NDI •- 



X RAMP RET I 



RAMP 



COPYE.N-\ 



+ IS VOLTS 

• J54-4 
SKJDB- — £ 

|j54-7 
+5 VOLTS 



SIG &KJD 



19 VOLTS 



ZO VOLTS V 



;nter-o 



GNJD 



READ-O 



WAIT -o I 



lOs-'Y-O 
KB COPY-O 




IJ5Z-4- 
H. 6MDI D> 



{ MAXE COPY-O 



4C51 



PAGE 3 OF 3 



REV. A, JUNE 1977 



<2T7 2.-O5<*<o-05